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 perfom 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 everthing
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 = 5000;
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;
}
/// <summary>
/// Supporting rounded corners.
/// </summary>
/// <param name="s"></param>
/// <returns></returns>
protected override RequestedAction PreRenderImage(ImageState s)
{
if (s.sourceBitmap == null) return RequestedAction.None;
double[] vals = NameValueCollectionExtensions.GetList<double>(s.settings, "s.roundcorners",0,1,4);
if (vals == null) return RequestedAction.None;
if (vals.Length == 1) vals = new double[]{vals[0],vals[0],vals[0],vals[0]};
bool hasValue = false;
foreach (double d in vals) if (d > 0) hasValue = true;
if (!hasValue) return RequestedAction.None;
Bitmap cropped = null;
try{
//Make sure cropping is applied, and use existing prerendered bitmap if present.
s.ApplyCropping();
cropped = s.preRenderBitmap ?? s.sourceBitmap;
s.preRenderBitmap = new Bitmap(cropped.Width,cropped.Height, PixelFormat.Format32bppArgb);
int[] radius = new int[4];
//Radius percentages are 0-100, a percentage of the smaller of the width and height.
for (int i = 0; i < vals.Length; i++) radius[i] = (int)Math.Round(Math.Max(0,Math.Min(99.999,vals[i])) * ((double)Math.Min(s.preRenderBitmap.Width,s.preRenderBitmap.Height) / 100));
s.preRenderBitmap.MakeTransparent();
using (Graphics g = Graphics.FromImage(s.preRenderBitmap)) {
g.SmoothingMode = SmoothingMode.AntiAlias;
g.CompositingMode = CompositingMode.SourceOver;
g.CompositingQuality = CompositingQuality.HighQuality;
g.PixelOffsetMode = PixelOffsetMode.HighQuality;
using (TextureBrush tb = new TextureBrush(cropped))
using (GraphicsPath gp = new GraphicsPath(FillMode.Winding)) {
Rectangle bounds = new Rectangle(0, 0, s.preRenderBitmap.Width, s.preRenderBitmap.Height);
int[] angles = new int[]{180,270,0,90};
int[] xs = new int[]{bounds.X,bounds.Right - radius[1], bounds.Right - radius[2], bounds.X};
int[] ys = new int[]{bounds.Y,bounds.Y,bounds.Bottom - radius[2], bounds.Bottom - radius[3]};
for (int i =0; i < 4; i++){
if (radius[i] > 0){
gp.AddArc(xs[i],ys[i],radius[i],radius[i],angles[i],90);
}else{
gp.AddLine(xs[i],ys[i],xs[i],ys[i]);
}
}
g.FillPath(tb, gp);
}
}
}finally{
if (cropped != null & cropped != s.sourceBitmap) cropped.Dispose();
}
return RequestedAction.None;
}
protected override RequestedAction PreRenderImage(ImageState s)
{
if (s.sourceBitmap == null) return RequestedAction.None;
if (!s.settings.WasOneSpecified("a.featheredges")) return RequestedAction.None;
s.ApplyCropping();
s.EnsureRGBA();
s.EnsurePreRenderBitmap();
ApplyPreFiltersTo(ref s.preRenderBitmap, s);
return RequestedAction.None;
}