protected override RequestedAction LayoutImage(ImageState s)
{
if (s.sourceBitmap == null)
{
return(RequestedAction.None);
}
//Parse carve data bitmap
if (!string.IsNullOrEmpty(s.settings["carve.data"]))
{
string[] parts = s.settings["carve.data"].Split('|');
//Parse block count and string
var block_count = int.Parse(parts[0]);
var carveString = new LzwDecoder("012").Decode(PathUtils.FromBase64UToBytes(parts[1]));
float block_size = (int)Math.Floor(Math.Sqrt(s.originalSize.Width * s.originalSize.Height / (double)block_count));
var carveData = new CarveDataPlotter()
{
BlockCount = block_count,
Stride = (int)Math.Ceiling((float)s.originalSize.Width / block_size),
Rows = (int)Math.Ceiling((float)s.originalSize.Height / block_size)
};
carveData.Init(carveString);
Size remove = carveData.GetRemovalSpace(s.originalSize.Width, s.originalSize.Height, (int)block_size);
if (remove.Width / s.originalSize.Width > remove.Height / s.originalSize.Height)
{
s.originalSize = new Size(s.originalSize.Width - remove.Width, s.originalSize.Height);
}
else
{
s.originalSize = new Size(s.originalSize.Width, s.originalSize.Height - remove.Height);
}
//Save later
s.Data[CarveData] = carveData;
}
return(RequestedAction.None);
}
protected override RequestedAction LayoutImage(ImageState s)
{
if (s.sourceBitmap == null) return RequestedAction.None;
//Parse carve data bitmap
if (!string.IsNullOrEmpty(s.settings["carve.data"])) {
string[] parts = s.settings["carve.data"].Split('|');
//Parse block count and string
var block_count = int.Parse(parts[0]);
var carveString = new LzwDecoder("012").Decode(PathUtils.FromBase64UToBytes(parts[1]));
float block_size = (int)Math.Floor(Math.Sqrt(s.originalSize.Width * s.originalSize.Height / (double)block_count));
var carveData = new CarveDataPlotter() {
BlockCount=block_count,
Stride = (int)Math.Ceiling((float)s.originalSize.Width / block_size),
Rows = (int)Math.Ceiling((float)s.originalSize.Height / block_size)
};
carveData.Init(carveString);
Size remove = carveData.GetRemovalSpace(s.originalSize.Width,s.originalSize.Height,(int)block_size);
if (remove.Width / s.originalSize.Width > remove.Height / s.originalSize.Height) {
s.originalSize = new Size(s.originalSize.Width - remove.Width, s.originalSize.Height);
} else {
s.originalSize = new Size(s.originalSize.Width, s.originalSize.Height - remove.Height);
}
//Save later
s.Data[CarveData] = carveData;
}
return RequestedAction.None;
}
protected override RequestedAction PreRenderImage(ImageState s)
{
//Skip this when we are doing simulations
if (s.destGraphics == null)
{
return(RequestedAction.None);
}
s.ApplyCropping();
s.EnsurePreRenderBitmap();
//Parse carve algorithm kind
FilterType ftype = s.settings.Get <FilterType>("carve", FilterType.None);
if ("true".Equals(s.settings["carve"], StringComparison.OrdinalIgnoreCase))
{
ftype = FilterType.Prewitt;
}
if (string.IsNullOrEmpty(s.settings["carve"]) && s.settings.Mode == FitMode.Carve)
{
ftype = FilterType.Prewitt;
}
//If we have carve data
CarveDataPlotter carveData = s.Data.ContainsKey(CarveData) ? (s.Data[CarveData] as CarveDataPlotter) : null;
if (carveData != null && ftype == FilterType.None)
{
ftype = FilterType.Prewitt;
}
RectangleF copyRect = s.copyRect;
if (carveData != null)
{
copyRect = new RectangleF(new PointF(0, 0), s.sourceBitmap.Size);
}
if (ftype == FilterType.None)
{
return(RequestedAction.None); //Only override rendering when carving is requested.
}
//The minimum dimensions of the temporary bitmap.
SizeF targetSize = PolygonMath.getParallelogramSize(s.layout["image"]);
targetSize = new SizeF((float)Math.Ceiling(targetSize.Width), (float)Math.Ceiling(targetSize.Height));
//The size of the temporary bitmap.
//We want it larger than the size we'll use on the final copy, so we never upscale it
//- but we also want it as small as possible so processing is fast.
SizeF tempSize = PolygonMath.ScaleOutside(targetSize, copyRect.Size);
int tempWidth = (int)Math.Ceiling(tempSize.Width);
int tempHeight = (int)Math.Ceiling(tempSize.Height);
//The intermediate and seam carved files
string tempFile = Path.GetTempFileName();
string outputTempFile = Path.GetTempFileName();
try {
try {
//Create a temporary bitmap that is 'halfway resized', so we can efficiently perform seam carving.
//Unless it's already been done for us by FreeImageResize or something
if (s.preRenderBitmap != null && (tempWidth - s.preRenderBitmap.Width < 50 && tempHeight - s.preRenderBitmap.Height < 50))
{
s.preRenderBitmap.Save(tempFile, ImageFormat.Bmp);
tempWidth = s.preRenderBitmap.Width;
tempHeight = s.preRenderBitmap.Height;
}
else
{
//Create the temporary bitmap and graphics.
using (Bitmap temp = new Bitmap(tempWidth, tempHeight, PixelFormat.Format32bppArgb))
using (Graphics g = Graphics.FromImage(temp))
using (ImageAttributes ia = new ImageAttributes()) {
//High quality everything
g.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.HighQualityBicubic;
g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
g.PixelOffsetMode = System.Drawing.Drawing2D.PixelOffsetMode.HighQuality;
g.CompositingQuality = System.Drawing.Drawing2D.CompositingQuality.HighQuality;
g.CompositingMode = CompositingMode.SourceOver;
ia.SetWrapMode(WrapMode.TileFlipXY);
if (s.preRenderBitmap != null)
{
g.DrawImage(s.preRenderBitmap, new Rectangle(0, 0, tempWidth, tempHeight), 0, 0, s.preRenderBitmap.Width, s.preRenderBitmap.Height, GraphicsUnit.Pixel, ia);
}
else
{
g.DrawImage(s.sourceBitmap, new Rectangle(0, 0, tempWidth, tempHeight), copyRect.X, copyRect.Y, copyRect.Width, copyRect.Height, GraphicsUnit.Pixel, ia);
}
g.Flush(FlushIntention.Flush);
//Save
temp.Save(tempFile, ImageFormat.Bmp);
}
}
string maskFile = carveData != null?Path.GetTempFileName() : null;
try {
if (carveData != null)
{
carveData.SaveBitmapAs(maskFile, tempWidth, tempHeight);
}
Size intTargetSize = new Size((int)targetSize.Width, (int)targetSize.Height);
CairJob job = new CairJob();
if (maskFile != null)
{
job.WeightPath = maskFile;
}
job.SourcePath = tempFile;
job.DestPath = outputTempFile;
job.Size = intTargetSize;
job.Filter = ftype;
job.Timeout = Timeout;
cair.CairyIt(job);
} finally {
if (maskFile != null)
{
File.Delete(maskFile);
}
}
} finally {
File.Delete(tempFile);
}
//Dispose old intermediate bitmap first
if (s.preRenderBitmap != null)
{
s.preRenderBitmap.Dispose();
}
//Load the new intermediate file from disk
s.preRenderBitmap = new Bitmap(outputTempFile);
s.preRenderBitmap.MakeTransparent();
//Reset the s.copyRect to match the new bitmap
s.copyRect = new RectangleF(new PointF(0, 0), new SizeF(targetSize.Width, targetSize.Height));
} finally {
File.Delete(outputTempFile);
}
return(RequestedAction.Cancel);
}
