public static string ToCode(this CropAnchor anchor)
{
switch (anchor)
{
case Bottom: return("b");
case Bottom | Left: return("bl");
case Bottom | Right: return("br");
case Center: return("c");
case Left: return("l");
case Right: return("r");
case Top: return("t");
case Top | Left: return("tl");
case Top | Right: return("tr");
default: throw new ArgumentException($"Invalid anchor. Was '{anchor}'");
}
}
public static PaddedBox Pad(
Size source,
Size bounds,
CropAnchor anchor = CropAnchor.Center,
bool upscale = false)
{
var size = Fit(source, bounds, upscale); // Fit if it doesn't fit or needs upscaling...
// Distribute the padding
var extraWidth = bounds.Width - size.Width;
var extraHeight = bounds.Height - size.Height;
int top = extraHeight / 2,
right = extraWidth / 2,
bottom = extraHeight / 2,
left = extraWidth / 2;
if (anchor.HasFlag(CropAnchor.Left))
{
right = extraWidth;
left = 0;
}
else if (anchor.HasFlag(CropAnchor.Right))
{
left = extraWidth;
right = 0;
}
else
{
// If we split on a pixel, add 1px to the left
if (extraWidth % 2 == 1)
{
left += 1;
}
}
if (anchor.HasFlag(CropAnchor.Top))
{
bottom = extraHeight;
top = 0;
}
else if (anchor.HasFlag(CropAnchor.Bottom))
{
top = extraHeight;
bottom = 0;
}
else
{
// If we split on a pixel, add 1px to the top
if (extraHeight % 2 == 1)
{
top += 1;
}
}
var padding = new Padding(top, right, bottom, left);
return(new PaddedBox(size, padding));
}
public static void Crop(Texture2D texture, int width, int height, CropAnchor anchor = CropAnchor.CENTER)
{
int resultPosX = 0;
int resultPosY = 0;
int resultWidth = 0;
int resultHeight = 0;
float ratioWidth = (float)width / (float)texture.width;
float ratioHeight = (float)height / (float)texture.height;
if (ratioHeight < ratioWidth)
{
resultWidth = width;
resultHeight = (int)(texture.height * ratioWidth);
switch (anchor)
{
case CropAnchor.TOP:
resultPosY = (int)(resultHeight - height);
break;
case CropAnchor.BOTTOM:
resultPosY = 0;
break;
default:
resultPosY = (int)((resultHeight - height) * 0.5f);
break;
}
}
else
{
resultWidth = (int)(texture.width * ratioHeight);
resultHeight = height;
switch (anchor)
{
case CropAnchor.LEFT:
resultPosX = 0;
break;
case CropAnchor.RIGHT:
resultPosX = (int)(resultWidth - width);
break;
default:
resultPosX = (int)((resultWidth - width) * 0.5f);
break;
}
}
Resize(texture, resultWidth, resultHeight);
Color[] pixelArray = texture.GetPixels(resultPosX, resultPosY, width, height);
texture.Resize(width, height);
texture.SetPixels(pixelArray, 0);
texture.Apply();
}
public static void Crop(Texture2D texture, int width, int height, CropAnchor anchor = CropAnchor.CENTER)
{
int resultPosX = 0;
int resultPosY = 0;
int resultWidth = 0;
int resultHeight = 0;
float ratioWidth = (float)width/(float)texture.width;
float ratioHeight = (float)height/(float)texture.height;
if (ratioHeight < ratioWidth)
{
resultWidth = width;
resultHeight = (int)(texture.height * ratioWidth);
switch(anchor)
{
case CropAnchor.TOP:
resultPosY = (int)(resultHeight - height);
break;
case CropAnchor.BOTTOM:
resultPosY = 0;
break;
default:
resultPosY = (int)((resultHeight - height) * 0.5f);
break;
}
}
else
{
resultWidth = (int)(texture.width * ratioHeight);
resultHeight = height;
switch(anchor)
{
case CropAnchor.LEFT:
resultPosX = 0;
break;
case CropAnchor.RIGHT:
resultPosX = (int)(resultWidth - width);
break;
default:
resultPosX = (int)((resultWidth - width) * 0.5f);
break;
}
}
Resize(texture, resultWidth, resultHeight);
Color[] pixelArray = texture.GetPixels(resultPosX, resultPosY, width, height);
texture.Resize(width, height);
texture.SetPixels(pixelArray, 0);
texture.Apply();
}
public SizingOptions(
int width, int height, int padding,
Color backgroundColor,
CropAnchor anchor,
long sprocketFileID)
{
this.padding = padding;
this.height = height;
this.width = width;
this.backgroundColor = backgroundColor;
this.displayType = Display.Crop;
this.anchor = anchor;
this.sprocketFileID = sprocketFileID;
SetFilename();
}
public SizingOptions(
int width, int height, int padding,
Color backgroundColor,
Color borderColor, int borderSize,
CropAnchor anchor,
long sprocketFileID)
{
this.padding = padding;
this.height = height;
this.width = width;
this.backgroundColor = backgroundColor;
this.borderColor = borderColor;
this.borderSize = borderSize;
this.displayType = Display.Crop;
this.anchor = anchor;
this.sprocketFileID = sprocketFileID;
SetFilename();
}
// Align the box within the bounds
public static void Align(ref Rectangle box, Size bounds, CropAnchor anchor)
{
double x = 0d,
y = 0d;
// There's horizontal space
if (box.Width < bounds.Width)
{
if (anchor.HasFlag(CropAnchor.Left))
{
x = 0;
}
else if (anchor.HasFlag(CropAnchor.Right))
{
x = bounds.Width - box.Width;
}
else // center
{
x = (bounds.Width - box.Width) / 2d;
}
}
// There's vertical space
if (box.Height < bounds.Height)
{
if (anchor.HasFlag(CropAnchor.Top))
{
y = 0;
}
else if (anchor.HasFlag(CropAnchor.Bottom))
{
y = bounds.Height - box.Height;
}
else // Center
{
y = (bounds.Height - box.Height) / 2d;
}
}
box.X = (int)x;
box.Y = (int)y;
}
// source is ALWAYS bigger than bounds
private static Rectangle CalculateCropRectangle(Size source, Size target, CropAnchor anchor)
{
int x = 0,
y = 0;
// There's veritical space to distribute
if (source.Height > target.Height)
{
if (anchor.HasFlag(CropAnchor.Top))
{
y = 0;
}
else if (anchor.HasFlag(CropAnchor.Bottom))
{
y = source.Height - target.Height;
}
else // Center
{
y = (int)((source.Height - target.Height) / 2d);
}
}
// There's horizontal space to distribute
if (source.Width > target.Width)
{
if (anchor.HasFlag(CropAnchor.Left))
{
x = 0;
}
else if (anchor.HasFlag(CropAnchor.Right))
{
x = source.Width - target.Width;
}
else // center
{
x = (int)((source.Width - target.Width) / 2d);
}
}
return(new Rectangle(x, y, target.Width, target.Height));
}
public MediaTransformation Resize(int width, int height, CropAnchor anchor)
{
Apply(new ResizeTransform(new Size(width, height), anchor));
return(this);
}
public static Rectangle CalculateCropRectangle(Size source, Rational aspect, CropAnchor anchor)
{
var targetSize = Max(source, aspect);
return(CalculateCropRectangle(source, targetSize, anchor));
}
public static Texture2D LoadCroppedFromFile(string filePath, int width, int height, CropAnchor anchor)
{
Texture2D thumbnail = TextureUtils.LoadFixedHeightFromFile(filePath, height, TextureFormat.R16);
TextureUtils.Crop(thumbnail, width, height, anchor);
return thumbnail;
}
public static Texture2D LoadCroppedFromFile(string filePath, int width, int height, CropAnchor anchor)
{
Texture2D thumbnail = TextureUtils.LoadFixedHeightFromFile(filePath, height, TextureFormat.R16);
TextureUtils.Crop(thumbnail, width, height, anchor);
return(thumbnail);
}
