public static WpfImageSettings WpfDestinationImageSettings(this ImageState imageState, ResizeSettings settings)
{
WpfImageSettings wpfImageSettings = new WpfImageSettings();
Rectangle imageDest = PolygonMath.ToRectangle(PolygonMath.GetBoundingBox(imageState.layout["image"]));
/* test - provo a ricavare i dati di resize che mi servono direttamente dagli oggetti Drawing sottostanti */
SizeF imageAreaSizes = PolygonMath.getParallelogramSize(imageState.layout["image"]);
wpfImageSettings.DestinationImageWidth = imageAreaSizes.Width;
wpfImageSettings.DestinationImageHeight = imageAreaSizes.Height;
// Correct the settings.Mode according to the documentation
if (settings.Mode == FitMode.None && (settings.Width != -1 && settings.Height != -1))
{
settings.Mode = FitMode.Pad;
}
else if (settings.Mode == FitMode.None && (settings.MaxWidth != -1 && settings.MaxHeight != -1))
{
settings.Mode = FitMode.Max;
}
#region -- Manage the image dimensions --
//double widthToApply = (settings.Width == -1 ? (double)settings.MaxWidth : (double)settings.Width);
//double heightToApply = (settings.Height == -1 ? (double)settings.MaxHeight : (double)settings.Height);
//var proportionWidth = (double)imageState.originalSize.Width / widthToApply;
//var proportionHeight = (double)imageState.originalSize.Height / heightToApply;
switch (settings.Mode)
{
case FitMode.None:
break;
case FitMode.Carve:
// TODO
//case FitMode.Pad:
case FitMode.Max:
//if (proportionWidth > proportionHeight)
//{
// wpfImageSettings.DestinationImageHeight = Convert.ToInt32(imageState.originalSize.Height / proportionWidth);
// wpfImageSettings.DestinationImageWidth = Convert.ToInt32(widthToApply);
//}
//else
//{
// wpfImageSettings.DestinationImageWidth = Convert.ToInt32(imageState.originalSize.Width / proportionHeight);
// wpfImageSettings.DestinationImageHeight = Convert.ToInt32(heightToApply);
//}
/*
*
*
*
* TODO:
*
* verificare la necessità di calcolare gli offset per il PAD
*
*
*
*
*/
break;
case FitMode.Crop:
case FitMode.Pad:
//int scaleWidth, scaleHeight;
//scaleWidth = scaleHeight = 0;
//wpfImageSettings.DestinationImageCanvasWidth = scaleWidth = imageDest.Width;
//wpfImageSettings.DestinationImageCanvasHeight = scaleHeight = imageDest.Height;
//// If only a dimension is missing make it square
//if (wpfImageSettings.DestinationImageCanvasWidth == 0 || wpfImageSettings.DestinationImageCanvasHeight == 0)
//{
// wpfImageSettings.DestinationImageCanvasWidth = wpfImageSettings.DestinationImageCanvasHeight = Math.Max(wpfImageSettings.DestinationImageCanvasWidth, wpfImageSettings.DestinationImageCanvasHeight);
//}
//double originalProportions = (double)imageState.originalSize.Width / (double)imageState.originalSize.Height;
//double viewportProportions = (double)wpfImageSettings.DestinationImageCanvasWidth / (double)wpfImageSettings.DestinationImageCanvasHeight;
//// Calculates the new scale proportions to make touche-from-inside crop
//if ((originalProportions > 1 && viewportProportions <= 1) || (originalProportions < 1 && viewportProportions > 1))
//{
// scaleHeight = Math.Max(wpfImageSettings.DestinationImageCanvasHeight, wpfImageSettings.DestinationImageCanvasWidth);
// scaleWidth = Convert.ToInt32(((float)(scaleHeight) / (float)(imageState.originalSize.Height)) * imageState.originalSize.Width);
//}
//else
//{
// scaleWidth = Math.Max(wpfImageSettings.DestinationImageCanvasHeight, wpfImageSettings.DestinationImageCanvasWidth);
// scaleHeight = Convert.ToInt32(((float)(scaleWidth) / (float)(imageState.originalSize.Width)) * imageState.originalSize.Height);
//}
//wpfImageSettings.DestinationImageWidth = scaleWidth;
//wpfImageSettings.DestinationImageHeight = scaleHeight;
//if ((imageState.copyRect.Y == 0) && (imageState.copyRect.X != 0))
if ((imageState.originalSize.Width / imageState.originalSize.Height) >= (imageDest.Width / imageDest.Height))
{
wpfImageSettings.DestinationImageWidth = (imageState.originalSize.Width * imageDest.Height) / imageState.copyRect.Height;
if (settings.Mode == FitMode.Pad)
{
wpfImageSettings.DestinationImageHeight = imageState.originalSize.Height;
}
else
{
wpfImageSettings.DestinationImageHeight = imageDest.Height;
}
wpfImageSettings.OffsetX = -(wpfImageSettings.DestinationImageWidth * imageState.copyRect.X) / imageState.originalSize.Width;
wpfImageSettings.OffsetY = 0;
}
else // if ((imageState.copyRect.X == 0) && (imageState.copyRect.Y != 0))
{
if (settings.Mode == FitMode.Pad)
{
wpfImageSettings.DestinationImageWidth = imageState.originalSize.Width;
}
else
{
wpfImageSettings.DestinationImageWidth = imageDest.Width;
}
wpfImageSettings.DestinationImageHeight = (imageState.originalSize.Height * imageDest.Width) / imageState.copyRect.Width;
wpfImageSettings.OffsetX = 0;
wpfImageSettings.OffsetY = -(wpfImageSettings.DestinationImageHeight * imageState.copyRect.Y) / imageState.originalSize.Height;
}
/*else
* {
*
* }*/
break;
//case FitMode.Pad:
// wpfImageSettings.DestinationImageHeight = Convert.ToInt32(imageState.layout["image"][3].Y - imageState.layout["image"][0].Y);
// wpfImageSettings.DestinationImageWidth = Convert.ToInt32(imageState.layout["image"][1].X - imageState.layout["image"][3].X);
// break;
case FitMode.Stretch:
//wpfImageSettings.DestinationImageWidth = Convert.ToInt32(widthToApply);
//wpfImageSettings.DestinationImageHeight = Convert.ToInt32(heightToApply);
break;
default:
wpfImageSettings.DestinationImageWidth = imageState.originalSize.Width;
wpfImageSettings.DestinationImageHeight = imageState.originalSize.Height;
break;
}
#endregion
#region -- Manage the allignments --
switch (settings.Mode)
{
case FitMode.None:
case FitMode.Crop:
case FitMode.Pad:
RectangleF croppedSize = settings.getCustomCropSourceRect(imageState.originalSize);
if ((croppedSize.X != 0) || (croppedSize.Y != 0))
{
wpfImageSettings.OffsetX = -Convert.ToInt32(croppedSize.X);
wpfImageSettings.OffsetY = -Convert.ToInt32(croppedSize.Y);
wpfImageSettings.DestinationImageCanvasWidth = croppedSize.Right - croppedSize.Left;
wpfImageSettings.DestinationImageCanvasHeight = croppedSize.Bottom - croppedSize.Top;
}
else
{
wpfImageSettings.OffsetX = imageState.layout["image"][0].X;
wpfImageSettings.OffsetY = imageState.layout["image"][0].Y;
}
//wpfImageSettings.DestinationImageCanvasWidth = imageDest.Width;
//wpfImageSettings.DestinationImageCanvasHeight = imageDest.Height;
//// In crop or pad I've to calculate the Offsets
//switch (settings.Anchor)
//{
// case ContentAlignment.BottomCenter:
// wpfImageSettings.OffsetX = (int)Math.Floor((double)(imageState.finalSize.Width - wpfImageSettings.DestinationImageWidth) / 2);
// wpfImageSettings.OffsetY = imageState.finalSize.Height - wpfImageSettings.DestinationImageHeight;
// break;
// case ContentAlignment.BottomLeft:
// wpfImageSettings.OffsetX = 0;
// wpfImageSettings.OffsetY = imageState.finalSize.Height - wpfImageSettings.DestinationImageHeight;
// break;
// case ContentAlignment.BottomRight:
// wpfImageSettings.OffsetX = imageState.finalSize.Width - wpfImageSettings.DestinationImageWidth;
// wpfImageSettings.OffsetY = imageState.finalSize.Height - wpfImageSettings.DestinationImageHeight;
// break;
// case ContentAlignment.MiddleCenter:
// wpfImageSettings.OffsetX = (int)Math.Floor((double)(imageState.finalSize.Width - wpfImageSettings.DestinationImageWidth) / 2);
// wpfImageSettings.OffsetY = (int)Math.Floor((double)(imageState.finalSize.Height - wpfImageSettings.DestinationImageHeight) / 2);
// break;
// case ContentAlignment.MiddleLeft:
// wpfImageSettings.OffsetX = 0;
// wpfImageSettings.OffsetY = (int)Math.Floor((double)(imageState.finalSize.Height - wpfImageSettings.DestinationImageHeight) / 2);
// break;
// case ContentAlignment.MiddleRight:
// wpfImageSettings.OffsetX = imageState.finalSize.Width - wpfImageSettings.DestinationImageWidth;
// wpfImageSettings.OffsetY = (int)Math.Floor((double)(imageState.finalSize.Height - wpfImageSettings.DestinationImageHeight) / 2);
// break;
// case ContentAlignment.TopCenter:
// wpfImageSettings.OffsetX = (int)Math.Floor((double)(imageState.finalSize.Width - wpfImageSettings.DestinationImageWidth) / 2);
// wpfImageSettings.OffsetY = 0;
// break;
// case ContentAlignment.TopLeft:
// wpfImageSettings.OffsetX = 0;
// wpfImageSettings.OffsetY = 0;
// break;
// case ContentAlignment.TopRight:
// wpfImageSettings.OffsetX = imageState.finalSize.Width - wpfImageSettings.DestinationImageWidth;
// wpfImageSettings.OffsetY = 0;
// break;
// default:
// break;
//}
break;
//case FitMode.Crop:
// break;
default:
/*
*
*
* TODO: risistemare!!!
*
*
*/
// Supposing I'm on manual cropping, I'll use the underlying calculations
//wpfImageSettings.DestinationImageWidth = imageState.originalSize.Width;
//wpfImageSettings.DestinationImageHeight = imageState.originalSize.Height;
//RectangleF croppedSize = settings.getCustomCropSourceRect(imageState.originalSize);
//wpfImageSettings.OffsetX = -Convert.ToInt32(croppedSize.X);
//wpfImageSettings.OffsetY = -Convert.ToInt32(croppedSize.Y);
//wpfImageSettings.DestinationImageCanvasWidth = croppedSize.Right - croppedSize.Left;
//wpfImageSettings.DestinationImageCanvasHeight = croppedSize.Bottom - croppedSize.Top;
break;
}
#endregion
if ((settings.Rotate % 360) != 0)
{
wpfImageSettings.OffsetX = (imageState.finalSize.Width - wpfImageSettings.DestinationImageWidth) / 2;
wpfImageSettings.OffsetY = (imageState.finalSize.Height - wpfImageSettings.DestinationImageHeight) / 2;
}
return(wpfImageSettings);
}
protected override RequestedAction PreRenderImage(ImageState s)
{
//Skip this when we are doing simulations
if (s.destGraphics == null)
{
return(RequestedAction.None);
}
string sf = s.settings["fi.scale"];
if (string.IsNullOrEmpty(sf))
{
return(RequestedAction.None);
}
bool validAlg = false;
FREE_IMAGE_FILTER filter = ParseResizeAlgorithm(sf, FREE_IMAGE_FILTER.FILTER_CATMULLROM, out validAlg);
if (!validAlg)
{
throw new ImageProcessingException("The specified resizing filter '" + sf + "' did not match bicubic, bilinear, box, bspline, catmullrom, or lanczos.");
}
//Set copy attributes
s.copyAttibutes.SetWrapMode(WrapMode.TileFlipXY);
//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));
s.ApplyCropping();
s.EnsurePreRenderBitmap();
//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, s.copyRect.Size);
int tempWidth = (int)Math.Ceiling(tempSize.Width);
int tempHeight = (int)Math.Ceiling(tempSize.Height);
FIBITMAP src = FIBITMAP.Zero;
FIBITMAP midway = FIBITMAP.Zero;
try {
var oldbit = s.preRenderBitmap ?? s.sourceBitmap;
//Crop if needed, Convert, scale, then convert back.
src = FreeImage.CreateFromBitmap(oldbit);
midway = FreeImage.Rescale(src, tempWidth, tempHeight, filter);
FreeImage.UnloadEx(ref src);
//Clear the old pre-rendered image if needed
if (s.preRenderBitmap != null)
{
s.preRenderBitmap.Dispose();
}
//Reassign the pre-rendered image
s.preRenderBitmap = FreeImage.GetBitmap(midway);
s.copyRect = new RectangleF(0, 0, s.preRenderBitmap.Width, s.preRenderBitmap.Height);
FreeImage.UnloadEx(ref midway);
s.preRenderBitmap.MakeTransparent();
} finally {
if (!src.IsNull)
{
FreeImage.UnloadEx(ref src);
}
if (!midway.IsNull)
{
FreeImage.UnloadEx(ref midway);
}
}
return(RequestedAction.Cancel);
}
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);
}
