/// <summary>
/// Returns a rectangle representing the given ring - if it is an axis-parallel rectangle. Otherwise returns null;
/// </summary>
/// <param name="name"></param>
/// <returns></returns>
public RectangleF?GetRingAsRectF(string name)
{
var poly = this[name];
var rect = PolygonMath.GetBoundingBox(poly);
var poly2 = PolygonMath.ToPoly(rect);
return(PolygonMath.ArraysEqual(poly, poly2) ? (RectangleF?)rect : null);
}
/// <summary>
/// Gets a bounding box that encloses all rings that don't have ExcludeFromBoundingBox set.
/// </summary>
/// <returns></returns>
public RectangleF GetBoundingBox()
{
List <PointF> points = new List <PointF>(ring.Count * 5);
foreach (PointSet val in ringList)
{
if (val.flags == PointFlags.Ring)
{
points.AddRange(val.points);
}
}
return(PolygonMath.GetBoundingBox(points.ToArray()));
}
/// <summary>
/// Copies layout information from the given image state to the current instance.
/// Does not populate message or 'features' variables
/// </summary>
/// <param name="s"></param>
public void PopulateFrom(ImageState s)
{
this.ow = s.originalSize.Width;
this.oh = s.originalSize.Height;
this.cropx = s.copyRect.X;
this.cropy = s.copyRect.Y;
this.cropw = s.copyRect.Width;
this.croph = s.copyRect.Height;
RectangleF dest = PolygonMath.GetBoundingBox(s.layout["image"]);
this.dx = dest.X;
this.dy = dest.Y;
this.dw = dest.Width;
this.dh = dest.Height;
}
protected override RequestedAction PreFlushChanges(ImageState s)
{
if (s.destGraphics == null)
{
return(RequestedAction.None);
}
Interlocked.Increment(ref requestCount); //Track request count
string mode = c.get("trial.watermarkMode", "After500");
TrialWatermarkMode m = TrialWatermarkMode.After500;
if ("always".Equals(mode, StringComparison.OrdinalIgnoreCase))
{
m = TrialWatermarkMode.Always;
}
if ("randomly".Equals(mode, StringComparison.OrdinalIgnoreCase))
{
m = TrialWatermarkMode.Randomly;
}
bool applyWatermark = (m == TrialWatermarkMode.Always);
if (m == TrialWatermarkMode.After500 && requestCount > 500)
{
applyWatermark = true;
}
if (m == TrialWatermarkMode.Randomly)
{
applyWatermark = (new Random(requestCount).Next(0, 41) < 10); //25% chance
}
if (!applyWatermark)
{
return(RequestedAction.None);
}
DrawString(PolygonMath.GetBoundingBox(s.layout["image"]), s.destGraphics, "Unlicensed", FontFamily.GenericSansSerif, Color.FromArgb(70, Color.White));
return(RequestedAction.None);
}
public PolyRect(PointF[] points)
{
var rect = PolygonMath.GetBoundingBox(points);
this.SetBounds(rect.X, rect.Y, rect.Width, rect.Height);
// PolygonMath.IsUnrotated can tell us that the points follow a
// particular pattern, but in order to represent 90-degree rotations
// and flips, we want to consider them to be *non-rectangle* points.
// Therefore, we use a much more strict definition: there can only
// be 4 points, and they must be in the canonical order.
var right = this.x + this.width;
var bottom = this.y + this.height;
this.rect = points.Length == 4 &&
points[0].X == this.x && points[0].Y == this.y &&
points[1].X == right && points[1].Y == this.y &&
points[2].X == right && points[2].Y == bottom &&
points[3].X == this.x && points[3].Y == bottom;
this.points = points.Select(p => new float[] { p.X, p.Y }).ToArray();
}
protected override RequestedAction LayoutImage(ImageState s)
{
//Only activated if both width and height are specified, and mode=crop.
if (s.settings.Mode != FitMode.Crop || s.settings.Width < 0 || s.settings.Height < 0)
{
return(RequestedAction.None);
}
//Calculate bounding box for all coordinates specified.
double[] focus = NameValueCollectionExtensions.GetList <double>(s.settings, "c.focus", null, 2, 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48, 52, 56, 60, 64, 68, 72);
if (focus == null)
{
return(RequestedAction.None);
}
RectangleF box = PolygonMath.GetBoundingBox(focus);
var bounds = new RectangleF(new PointF(0, 0), s.originalSize);
//Clip box to original image bounds
box = PolygonMath.ClipRectangle(box, bounds);
var targetSize = new SizeF(s.settings.Width, s.settings.Height);
SizeF copySize;
//Now, we can either crop as closely as possible or as loosely as possible.
if (NameValueCollectionExtensions.Get <bool>(s.settings, "c.zoom", false) && box.Width > 0 && box.Height > 0)
{
//Crop close
copySize = PolygonMath.ScaleOutside(box.Size, targetSize);
}
else
{
//Crop minimally
copySize = PolygonMath.ScaleInside(targetSize, bounds.Size);
//Ensure it's outside the box
if (!PolygonMath.FitsInside(box.Size, copySize))
{
copySize = PolygonMath.ScaleOutside(box.Size, copySize);
}
}
//Clip to bounds.
box = PolygonMath.ClipRectangle(PolygonMath.ExpandTo(box, copySize), bounds);
s.copyRect = box;
///What is the vertical and horizontal aspect ratio different in result pixels?
var padding = PolygonMath.ScaleInside(box.Size, targetSize);
padding = new SizeF(targetSize.Width - padding.Width, targetSize.Height - padding.Height);
//So, if we haven't met the aspect ratio yet, what mode will we pass on?
var finalmode = NameValueCollectionExtensions.Get <FitMode>(s.settings, "c.finalmode", FitMode.Pad);
//Crop off 1 or 2 pixels instead of padding without worrying too much
if (finalmode == FitMode.Pad && padding.Width + padding.Height < 3)
{
finalmode = FitMode.Crop;
}
s.settings.Mode = finalmode;
return(RequestedAction.None);
}
protected override RequestedAction RenderImage(ImageState s)
{
//Skip this when we are doing simulations
if (s.destGraphics == null)
{
return(RequestedAction.None);
}
//If there's pre-rendering involved this optimization is utterly pointless.
if (s.preRenderBitmap != null)
{
return(RequestedAction.None);
}
//Find out what the speed setting is.
int speed = 0;
if (string.IsNullOrEmpty(s.settings["speed"]) || !int.TryParse(s.settings["speed"], NumberStyles.Integer, NumberFormatInfo.InvariantInfo, out speed))
{
speed = 0;
}
if (speed < 1)
{
return(RequestedAction.None);
}
s.destGraphics.CompositingMode = CompositingMode.SourceCopy;
s.destGraphics.CompositingQuality = CompositingQuality.HighSpeed;
if (speed == 1)
{
s.destGraphics.InterpolationMode = InterpolationMode.HighQualityBilinear;
}
else
{
s.destGraphics.InterpolationMode = InterpolationMode.Bilinear;
}
s.destGraphics.PixelOffsetMode = PixelOffsetMode.HighSpeed;
s.destGraphics.SmoothingMode = SmoothingMode.HighSpeed;
s.copyAttibutes.SetWrapMode(WrapMode.TileFlipXY);
if (speed < 3)
{
s.destGraphics.DrawImage(s.sourceBitmap, PolygonMath.getParallelogram(s.layout["image"]), s.copyRect, GraphicsUnit.Pixel, s.copyAttibutes);
}
else if (speed < 4)
{
Rectangle midsize = PolygonMath.ToRectangle(PolygonMath.GetBoundingBox(s.layout["image"]));
using (Image thumb = s.sourceBitmap.GetThumbnailImage(midsize.Width, midsize.Height, delegate() { return(false); }, IntPtr.Zero)) {
double xfactor = (double)thumb.Width / (double)s.sourceBitmap.Width;
double yfactor = (double)thumb.Height / (double)s.sourceBitmap.Height;
RectangleF copyPart = new RectangleF((float)(s.copyRect.Left * xfactor),
(float)(s.copyRect.Top * yfactor),
(float)(s.copyRect.Width * xfactor),
(float)(s.copyRect.Height * yfactor));
if (Math.Floor(copyPart.Height) == thumb.Height || Math.Ceiling(copyPart.Height) == thumb.Height)
{
copyPart.Height = thumb.Height;
}
if (Math.Floor(copyPart.Width) == thumb.Width || Math.Ceiling(copyPart.Width) == thumb.Width)
{
copyPart.Width = thumb.Width;
}
s.destGraphics.DrawImage(thumb, PolygonMath.getParallelogram(s.layout["image"]), copyPart, GraphicsUnit.Pixel, s.copyAttibutes);
}
}
else
{
RectangleF box = PolygonMath.GetBoundingBox(PolygonMath.getParallelogram(s.layout["image"]));
s.destGraphics.CompositingMode = CompositingMode.SourceCopy;
s.destGraphics.DrawImage(s.sourceBitmap, box.Left, box.Top, box.Width, box.Height);
}
return(RequestedAction.Cancel);
}
protected bool LegacyDrawWatermark(ImageState s)
{
Graphics g = s.destGraphics;
if (g == null)
{
return(false);
}
string watermark;
if (!LegacyParseWatermark(s.settings, out watermark))
{
return(false);
}
RectangleF imageBox = PolygonMath.GetBoundingBox(s.layout["image"]);
//Floor and ceiling values to prevent fractional placement.
imageBox.Width = (float)Math.Floor(imageBox.Width);
imageBox.Height = (float)Math.Floor(imageBox.Height);
imageBox.X = (float)Math.Ceiling(imageBox.X);
imageBox.Y = (float)Math.Ceiling(imageBox.Y);
SizeF watermarkSize = this.watermarkSize;
SizeF topLeftPadding = this.topLeftPadding;
SizeF bottomRightPadding = this.bottomRightPadding;
//Load the file specified in the querystring,
Bitmap wb = GetMemCachedBitmap(watermark);
lock (wb) {
//If percentages, resolve to pixels
if (valuesPercentages)
{
//Force into 0..1 range, inclusive.
watermarkSize.Height = Math.Max(0, Math.Min(1, watermarkSize.Height));
watermarkSize.Width = Math.Max(0, Math.Min(1, watermarkSize.Width));
topLeftPadding.Height = Math.Max(0, Math.Min(1, topLeftPadding.Height));
topLeftPadding.Width = Math.Max(0, Math.Min(1, topLeftPadding.Width));
bottomRightPadding.Height = Math.Max(0, Math.Min(1, bottomRightPadding.Height));
bottomRightPadding.Width = Math.Max(0, Math.Min(1, bottomRightPadding.Width));
//Make sure everything adds up to 1
double totalWidth = watermarkSize.Width + topLeftPadding.Width + bottomRightPadding.Width;
if (totalWidth > 1)
{
totalWidth = 1 / totalWidth; //Turn it into the factor we have to multiple by to make everything fit.
watermarkSize.Width *= (float)totalWidth;
topLeftPadding.Width *= (float)totalWidth;
bottomRightPadding.Width *= (float)totalWidth;
}
double totalHeight = watermarkSize.Height + topLeftPadding.Height + bottomRightPadding.Height;
if (totalHeight > 1)
{
totalHeight = 1 / totalHeight; //Turn it into the factor we have to multiply by to make everything fit.
watermarkSize.Height *= (float)totalHeight;
topLeftPadding.Height *= (float)totalHeight;
bottomRightPadding.Height *= (float)totalHeight;
}
//Now, we can resolve the percentages to pixels.
watermarkSize.Height *= imageBox.Height;
watermarkSize.Width *= imageBox.Width;
topLeftPadding.Height *= imageBox.Height;
topLeftPadding.Width *= imageBox.Width;
bottomRightPadding.Height *= imageBox.Height;
bottomRightPadding.Width *= imageBox.Width;
}
//Keep aspect ratio, shrinking further if needed.
if (keepAspectRatio)
{
watermarkSize = PolygonMath.DownScaleInside(wb.Size, watermarkSize);
}
//Floor all values to avoid rounding errors and blurry lines.
watermarkSize = new SizeF((float)Math.Floor(watermarkSize.Width), (float)Math.Floor(watermarkSize.Height));
topLeftPadding = new SizeF((float)Math.Floor(topLeftPadding.Width), (float)Math.Floor(topLeftPadding.Height));
bottomRightPadding = new SizeF((float)Math.Floor(bottomRightPadding.Width), (float)Math.Floor(bottomRightPadding.Height));
//Check boundingbox
SizeF watermarkBoundingBox = new SizeF(watermarkSize.Width + topLeftPadding.Width + bottomRightPadding.Width,
watermarkSize.Height + topLeftPadding.Height + bottomRightPadding.Height);
//Don't draw the watermark if it is too small.
if (!PolygonMath.FitsInside(watermarkBoundingBox, imageBox.Size))
{
if (hideIfTooSmall)
{
return(true);
}
else
{
SizeF oldSize = watermarkBoundingBox;
watermarkBoundingBox = PolygonMath.DownScaleInside(watermarkBoundingBox, imageBox.Size);
watermarkSize.Width -= (oldSize.Width - watermarkBoundingBox.Width);
watermarkSize.Height -= (oldSize.Height - watermarkBoundingBox.Height);
}
}
//Floor all values again
watermarkSize = new SizeF((float)Math.Floor(watermarkSize.Width), (float)Math.Floor(watermarkSize.Height));
topLeftPadding = new SizeF((float)Math.Floor(topLeftPadding.Width), (float)Math.Floor(topLeftPadding.Height));
bottomRightPadding = new SizeF((float)Math.Floor(bottomRightPadding.Width), (float)Math.Floor(bottomRightPadding.Height));
float innerWidth = (float)Math.Floor(imageBox.Width - Math.Abs(topLeftPadding.Width) - Math.Abs(bottomRightPadding.Width));
float innerHeight = (float)Math.Floor(imageBox.Height - Math.Abs(topLeftPadding.Height) - Math.Abs(bottomRightPadding.Height));
float x = 0;
float y = 0;
if (align == ContentAlignment.BottomCenter || align == ContentAlignment.BottomLeft || align == ContentAlignment.BottomRight)
{
y = (innerHeight - watermarkSize.Height) + topLeftPadding.Height;
}
if (align == ContentAlignment.MiddleCenter || align == ContentAlignment.MiddleLeft || align == ContentAlignment.MiddleRight)
{
y = (innerHeight - watermarkSize.Height) / 2 + topLeftPadding.Height;
}
if (align == ContentAlignment.TopCenter || align == ContentAlignment.TopLeft || align == ContentAlignment.TopRight)
{
y = topLeftPadding.Height;
}
if (align == ContentAlignment.BottomRight || align == ContentAlignment.MiddleRight || align == ContentAlignment.TopRight)
{
x = (innerWidth - watermarkSize.Width) + topLeftPadding.Width;
}
if (align == ContentAlignment.BottomCenter || align == ContentAlignment.MiddleCenter || align == ContentAlignment.TopCenter)
{
x = (innerWidth - watermarkSize.Width) / 2 + topLeftPadding.Width;
}
if (align == ContentAlignment.BottomLeft || align == ContentAlignment.MiddleLeft || align == ContentAlignment.TopLeft)
{
x = topLeftPadding.Width;
}
//Draw watermark
g.DrawImage(wb, new Rectangle((int)(x + imageBox.X), (int)(y + imageBox.Y), (int)watermarkSize.Width, (int)watermarkSize.Height));
}
return(true);
}
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 BuildJob(ImageJob job)
{
if (!"wpf".Equals(job.Settings["builder"]))
{
return(RequestedAction.None);
}
// Estrazione delle ResizeSettings
ResizeSettings settings = job.Settings;
Stream s = null;
bool disposeStream = !(job.Source is Stream);
long originalPosition = 0;
bool restoreStreamPosition = false;
string path;
s = c.CurrentImageBuilder.GetStreamFromSource(job.Source, job.Settings, ref disposeStream, out path, out restoreStreamPosition);
if (s == null)
{
return(RequestedAction.None); //We don't support the source object!
}
if (job.ResetSourceStream)
{
restoreStreamPosition = true;
}
job.SourcePathData = path;
// Instanzio uno stream locale per le operazioni WPF
using (MemoryStream localStream = (s is MemoryStream) ? (MemoryStream)s : StreamExtensions.CopyToMemoryStream(s))
{
if (s != null && restoreStreamPosition && s.CanSeek)
{
s.Seek(originalPosition, SeekOrigin.Begin);
}
if (disposeStream)
{
s.Dispose();
}
/* ? ? ? */
IEncoder managedEncoder = c.Plugins.GetEncoder(job.Settings, job.SourcePathData);
bool supportsTransparency = managedEncoder.SupportsTransparency;
// Recupero le dimensioni originali
var frame = BitmapFrame.Create(StreamExtensions.CopyToMemoryStream(localStream));
System.Windows.Size originalSize = new System.Windows.Size(frame.PixelWidth, frame.PixelHeight);
// Resetto lo stream locale alla posizione iniziale, dopo aver letto i metadata
localStream.Position = 0;
// Uhm... sono costretto a referenziare le System.Drawing (GDI) per questo,
// TODO: chiedere al tipo se si può prevedere un costruttore di ImageState che non preveda un System.Drawing.Size come parametro
System.Drawing.Size orig = new System.Drawing.Size((int)originalSize.Width, (int)originalSize.Height);
using (ImageState imageState = new ImageState(settings, orig, true))
{
c.CurrentImageBuilder.Process(imageState);
Rectangle imageDest = PolygonMath.ToRectangle(PolygonMath.GetBoundingBox(imageState.layout["image"]));
BitmapSource finalImage;
BitmapImage bi = new BitmapImage();
bi.CacheOption = BitmapCacheOption.OnLoad;
bi.BeginInit();
bi.StreamSource = localStream;
WpfImageSettings wpfImageSettings = imageState.WpfDestinationImageSettings(settings);
bi.DecodePixelWidth = Convert.ToInt32(wpfImageSettings.DestinationImageWidth);
bi.DecodePixelHeight = Convert.ToInt32(wpfImageSettings.DestinationImageHeight);
bi.EndInit();
// Creation of the encoder
WpfEncoderPlugin wpfEncoder = new WpfEncoderPlugin(settings, job.SourcePathData);
RenderTargetBitmap final = new RenderTargetBitmap(imageState.finalSize.Width, imageState.finalSize.Height, settings.Get <int>("dpi", 96), settings.Get <int>("dpi", 96), PixelFormats.Default);
DrawingVisual dv = new DrawingVisual();
using (DrawingContext dc = dv.RenderOpen())
{
string ARGBBackgroundColor = String.Format("#{0:X2}{1:X2}{2:X2}{3:X2}", wpfEncoder.MimeType.Equals("image/jpeg") ? 255 : settings.BackgroundColor.A,
settings.BackgroundColor.R,
settings.BackgroundColor.G,
settings.BackgroundColor.B);
System.Windows.Media.Brush BrushBackgroundColor = new System.Windows.Media.SolidColorBrush((System.Windows.Media.Color)System.Windows.Media.ColorConverter.ConvertFromString(ARGBBackgroundColor));
/* todo: verificare */
dc.DrawRectangle(BrushBackgroundColor, null, new Rect(0, 0, wpfImageSettings.DestinationImageWidth, wpfImageSettings.DestinationImageHeight));
Rect rect = new Rect(wpfImageSettings.OffsetX, wpfImageSettings.OffsetY, wpfImageSettings.DestinationImageWidth, wpfImageSettings.DestinationImageHeight);
//dc.PushTransform(new RotateTransform(settings.Rotate, (double)imageState.finalSize.Width / 2, (double)imageState.finalSize.Height / 2));
dc.DrawImage(bi, rect);
}
final.Render(dv);
finalImage = final;
// Write the image to the output stream
wpfEncoder.Write(finalImage, (Stream)job.Dest);
}
}
return(RequestedAction.None);
}
/// <summary>
/// Decodes the image in byte[] data, performs the image proccessing, and encodes it to job.Dest
/// </summary>
/// <param name="data">The buffer containing the encoded image file</param>
/// <param name="lData">The number of bytes to read</param>
/// <param name="job"></param>
/// <param name="supportsTransparency"></param>
/// <returns></returns>
protected virtual RequestedAction BuildJobWic(byte[] data, long lData, ImageJob job, bool supportsTransparency)
{
ResizeSettings settings = job.Settings; ResizeSettings q = settings;
string path = job.SourcePathData;
//A list of COM objects to destroy
List <object> com = new List <object>();
try {
//Create the factory
IWICComponentFactory factory = (IWICComponentFactory) new WICImagingFactory();
com.Add(factory);
//Wrap the byte[] with a IWICStream instance
var streamWrapper = factory.CreateStream();
streamWrapper.InitializeFromMemory(data, (uint)lData);
com.Add(streamWrapper);
var decoder = factory.CreateDecoderFromStream(streamWrapper, null,
WICDecodeOptions.WICDecodeMetadataCacheOnLoad);
com.Add(decoder);
//Figure out which frame to work with
int frameIndex = 0;
if (!string.IsNullOrEmpty(q["page"]) && !int.TryParse(q["page"], NumberStyles.Number, NumberFormatInfo.InvariantInfo, out frameIndex))
{
if (!string.IsNullOrEmpty(q["frame"]) && !int.TryParse(q["frame"], NumberStyles.Number, NumberFormatInfo.InvariantInfo, out frameIndex))
{
frameIndex = 0;
}
}
//So users can use 1-based numbers
frameIndex--;
if (frameIndex > 0)
{
int frameCount = (int)decoder.GetFrameCount(); //Don't let the user go past the end.
if (frameIndex >= frameCount)
{
frameIndex = frameCount - 1;
}
}
IWICBitmapFrameDecode frame = decoder.GetFrame((uint)Math.Max(0, frameIndex));
com.Add(frame);
WICBitmapInterpolationMode interpolationMode = WICBitmapInterpolationMode.WICBitmapInterpolationModeFant;
if ("nearest".Equals(settings["w.filter"], StringComparison.OrdinalIgnoreCase))
{
interpolationMode = WICBitmapInterpolationMode.WICBitmapInterpolationModeNearestNeighbor;
}
if ("bicubic".Equals(settings["w.filter"], StringComparison.OrdinalIgnoreCase))
{
interpolationMode = WICBitmapInterpolationMode.WICBitmapInterpolationModeCubic;
}
if ("linear".Equals(settings["w.filter"], StringComparison.OrdinalIgnoreCase))
{
interpolationMode = WICBitmapInterpolationMode.WICBitmapInterpolationModeLinear;
}
if ("nearestneighbor".Equals(settings["w.filter"], StringComparison.OrdinalIgnoreCase))
{
interpolationMode = WICBitmapInterpolationMode.WICBitmapInterpolationModeLinear;
}
//Find the original image size
uint origWidth, origHeight;
frame.GetSize(out origWidth, out origHeight);
Size orig = new Size((int)origWidth, (int)origHeight);
Guid pixelFormat;
frame.GetPixelFormat(out pixelFormat);
//Calculate the new size of the image and the canvas.
ImageState state = new ImageState(settings, orig, true);
c.CurrentImageBuilder.Process(state);
Rectangle imageDest = PolygonMath.ToRectangle(PolygonMath.GetBoundingBox(state.layout["image"]));
IWICBitmapSource imageData = frame;
//Are we cropping? then daisy-chain a clipper
if (state.copyRect.Left != 0 || state.copyRect.Top != 0 || state.copyRect.Width != state.originalSize.Width || state.copyRect.Height != state.originalSize.Height)
{
//Cropping is absurdly slow... 4x slower than resizing!
//Cropping after resizing (unintuitively) is faster.
if (imageDest.Width != state.originalSize.Width || imageDest.Height != state.originalSize.Height)
{
double sx = (double)imageDest.Width / (double)state.copyRect.Width;
double sy = (double)imageDest.Height / (double)state.copyRect.Height;
uint uncroppedDestWidth = (uint)Math.Round(sx * state.originalSize.Width);
uint uncroppedDestHeight = (uint)Math.Round(sy * state.originalSize.Height);
var scaler = factory.CreateBitmapScaler();
scaler.Initialize(imageData, uncroppedDestWidth, uncroppedDestHeight, interpolationMode);
com.Add(scaler);
//TODO: cropping is not consistent with GDI.
var clipper = factory.CreateBitmapClipper();
clipper.Initialize(scaler, new WICRect {
X = (int)Math.Floor((double)state.copyRect.X * sx),
Y = (int)Math.Floor((double)state.copyRect.Y * sy),
Width = imageDest.Width,
Height = imageDest.Height
});
com.Add(clipper);
imageData = clipper;
}
else
{
var clipper = factory.CreateBitmapClipper();
clipper.Initialize(imageData, new WICRect {
X = (int)state.copyRect.X, Y = (int)state.copyRect.Y, Width = (int)state.copyRect.Width, Height = (int)state.copyRect.Height
});
com.Add(clipper);
imageData = clipper;
}
//If we're scaling but not cropping.
}
else if (imageDest.Width != state.originalSize.Width || imageDest.Height != state.originalSize.Height)
{
var scaler = factory.CreateBitmapScaler();
scaler.Initialize(imageData, (uint)imageDest.Width, (uint)imageDest.Height, interpolationMode);
com.Add(scaler);
imageData = scaler;
}
//Are we padding? Then we have to do an intermediate write.
if (state.destSize.Width != imageDest.Width || state.destSize.Height != imageDest.Height)
{
byte[] bgcolor = ConversionUtils.ConvertColor(job.Settings.BackgroundColor, pixelFormat);
for (int i = 0; i < bgcolor.Length; i++)
{
bgcolor[i] = 255; //White
}
var padder = new WicBitmapPadder(imageData, imageDest.X, imageDest.Y, state.destSize.Width - (imageDest.X + imageDest.Width), state.destSize.Height - (imageDest.Y + imageDest.Height), bgcolor, null);
imageData = padder;
}
//Now encode imageData and be done with it...
return(Encode(factory, imageData, imageDest.Size, job));
} finally {
//Manually cleanup all the com reference counts, aggressively
while (com.Count > 0)
{
Marshal.ReleaseComObject(com[com.Count - 1]); //In reverse order, so no item is ever deleted out from under another.
com.RemoveAt(com.Count - 1);
}
}
}
/// <summary>
/// Returns a rectangle with canvas-relative coordinates. A callback is required to calculate the actual size of the content based on the specified bounds.
/// The callback may be passed double.NaN for one or more paramters to indicate that they are not specified.
///
/// </summary>
/// <param name="s"></param>
/// <returns></returns>
public RectangleF CalculateLayerCoordinates(ImageState s, CalculateLayerContentSize actualSizeCalculator, bool forceInsideCanvas)
{
//Find container
RectangleF cont;
if (s.layout.ContainsRing(RelativeTo))
{
cont = PolygonMath.GetBoundingBox(s.layout[RelativeTo]);
}
else if ("canvas".Equals(RelativeTo, StringComparison.OrdinalIgnoreCase))
{
cont = new RectangleF(new PointF(), s.destSize);
}
else
{
cont = PolygonMath.GetBoundingBox(s.layout["image"]);
}
//Calculate layer coords
RectangleF rect = new RectangleF();
//Resolve all values to the same coordinate plane, null values will be transformed to NaN
double left = Resolve(Left, cont.X, cont.Width, false);
double top = Resolve(Top, cont.Y, cont.Height, false);
double right = Resolve(Right, cont.Right, cont.Width, true);
double bottom = Resolve(Bottom, cont.Bottom, cont.Height, true);
double width = Resolve(Width, 0, cont.Width, false);
double height = Resolve(Height, 0, cont.Height, false);
//Force all values to be within the canvas area.
if (forceInsideCanvas)
{
SizeF canvas = s.destSize;
if (!double.IsNaN(left))
{
left = Math.Min(Math.Max(0, left), canvas.Width);
}
if (!double.IsNaN(right))
{
right = Math.Min(Math.Max(0, right), canvas.Width);
}
if (!double.IsNaN(width))
{
width = Math.Min(Math.Max(0, width), canvas.Width);
}
if (!double.IsNaN(bottom))
{
bottom = Math.Min(Math.Max(0, bottom), canvas.Height);
}
if (!double.IsNaN(top))
{
top = Math.Min(Math.Max(0, top), canvas.Height);
}
if (!double.IsNaN(height))
{
height = Math.Min(Math.Max(0, height), canvas.Height);
}
}
//If right and left (or top and bottom) are inverted, avg them and set them equal.
if (!double.IsNaN(left) && !double.IsNaN(right) && right < left)
{
left = right = ((left + right) / 2);
}
if (!double.IsNaN(top) && !double.IsNaN(bottom) && bottom < top)
{
bottom = top = ((bottom + top) / 2);
}
//Fill in width/height if enough stuff is specified
if (!double.IsNaN(left) && !double.IsNaN(right) && double.IsNaN(width))
{
width = Math.Max(right - left, 0);
}
if (!double.IsNaN(top) && !double.IsNaN(bottom) && double.IsNaN(height))
{
height = Math.Max(bottom - top, 0);
}
//Execute the callback to get the actual size. Update the width and height values if the actual size is smaller.
SizeF normalSize = actualSizeCalculator((double.IsNaN(width) && Fill) ? cont.Width : width, (double.IsNaN(height) && Fill) ? cont.Height : height);
if (double.IsNaN(width) || width > normalSize.Width)
{
width = normalSize.Width;
}
if (double.IsNaN(height) || height > normalSize.Height)
{
height = normalSize.Height;
}
//If only width and height are specified, set the other values to match the container, and let alignment sort it out.
if (double.IsNaN(left) && double.IsNaN(right))
{
left = cont.X; right = cont.Right;
} //Handle situations where neither left nor right is specified, pretend left=0
if (double.IsNaN(top) && double.IsNaN(bottom))
{
top = cont.X; bottom = cont.Bottom;
} //Handle situations where neither top nor bottom is specified, pretend top=0
//When all 3 values are specified in either direction, we must use the alignment setting to determine which direction to snap to.
if (!double.IsNaN(left) && !double.IsNaN(right) && !double.IsNaN(width))
{
if (width > right - left)
{
width = right - left; //Use the smaller value in this case, no need to align.
}
else
{
if (Align == ContentAlignment.BottomLeft || Align == ContentAlignment.MiddleLeft || Align == ContentAlignment.TopLeft)
{
right = left + width;
}
if (Align == ContentAlignment.BottomCenter || Align == ContentAlignment.MiddleCenter || Align == ContentAlignment.TopCenter)
{
left += (right - left - width) / 2;
right = left + width;
}
if (Align == ContentAlignment.BottomRight || Align == ContentAlignment.MiddleRight || Align == ContentAlignment.TopRight)
{
left = right - width;
}
}
}
//When all 3 values are specified in either direction, we must use the alignment setting to determine which direction to snap to.
if (!double.IsNaN(top) && !double.IsNaN(bottom) && !double.IsNaN(height))
{
if (height > bottom - top)
{
height = bottom - top; //Use the smaller value in this case, no need to align.
}
else
{
if (Align == ContentAlignment.TopLeft || Align == ContentAlignment.TopCenter || Align == ContentAlignment.TopRight)
{
bottom = top + height;
}
if (Align == ContentAlignment.MiddleLeft || Align == ContentAlignment.MiddleCenter || Align == ContentAlignment.MiddleRight)
{
top += (bottom - top - height) / 2;
bottom = top + height;
}
if (Align == ContentAlignment.BottomLeft || Align == ContentAlignment.BottomCenter || Align == ContentAlignment.BottomRight)
{
top = bottom - height;
}
}
}
//Calculate values for top and left based off bottom and right
if (double.IsNaN(left))
{
left = right - width;
}
if (double.IsNaN(top))
{
top = bottom - height;
}
//Calculate values for bottom and right based off top and left
if (double.IsNaN(right))
{
right = left + width;
}
if (double.IsNaN(bottom))
{
bottom = top + height;
}
return(new RectangleF((float)left, (float)top, (float)width, (float)height));
}
protected virtual void AssertLayout(string sourceSize, string resizeSettings, Action <RectangleF> assertImage, Action <SizeF> assertCanvas)
{
var sourceSizeSettings = new ResizeSettings(sourceSize);
var result = _imageLayoutBuilder.BuildLayout(new Size(sourceSizeSettings.Width, sourceSizeSettings.Height), new ResizeSettings(resizeSettings));
if (assertCanvas != null)
{
assertCanvas(result.CanvasSize);
}
if (assertImage != null)
{
assertImage(result.Image);
}
var maxWidth = (int)(Math.Max(result.Image.Width, result.CanvasSize.Width));
var maxHeight = (int)(Math.Max(result.Image.Height, result.CanvasSize.Height));
var padding = (int)Math.Max(Math.Abs(result.Image.Y), Math.Abs(result.Image.X)) + 20;
if ((maxWidth + padding) < 400)
{
padding = (400 - maxWidth) / 2;
}
// create a bitmap for visualizing
var bitmapSize = new RectangleF(0, 0, maxWidth + padding * 2, maxHeight + (padding * 2));
using (var bmp = new Bitmap((int)bitmapSize.Width, (int)bitmapSize.Height))
{
using (var gfx = Graphics.FromImage(bmp))
{
// set the background
gfx.FillRectangle(new SolidBrush(Color.White), 0, 0, bmp.Width, bmp.Height);
// output the results
gfx.DrawString("Source: " + sourceSize, new Font("Thaoma", 8), Brushes.Black, new RectangleF(0, 0, bmp.Width, bmp.Height), new StringFormat {
Alignment = StringAlignment.Near, LineAlignment = StringAlignment.Near
});
gfx.DrawString("Destination: " + resizeSettings, new Font("Thaoma", 8), Brushes.Black, new RectangleF(0, 0, bmp.Width, bmp.Height), new StringFormat {
Alignment = StringAlignment.Far, LineAlignment = StringAlignment.Near
});
gfx.DrawString("Canvas: " + result.CanvasSize.Width + "x" + result.CanvasSize.Height, new Font("Thaoma", 8), Brushes.Green, new RectangleF(0, 0, bmp.Width, bmp.Height), new StringFormat {
Alignment = StringAlignment.Near, LineAlignment = StringAlignment.Far
});
gfx.DrawString("Image: " + result.Image.Width + "x" + result.Image.Height, new Font("Thaoma", 8), Brushes.Red, new RectangleF(0, 0, bmp.Width, bmp.Height), new StringFormat {
Alignment = StringAlignment.Far, LineAlignment = StringAlignment.Far
});
//PolygonMath.AlignWith()
var canvas = new RectangleF(padding, padding, result.CanvasSize.Width, result.CanvasSize.Height);
var image = new RectangleF(padding + result.Image.X, padding + result.Image.Y, result.Image.Width, result.Image.Height);
var points = new List <PointF>();
points.AddRange(PolygonMath.ToPoly(canvas));
points.AddRange(PolygonMath.ToPoly(image));
points = PolygonMath.AlignWith(points.ToArray(), PolygonMath.ToPoly(bitmapSize), ContentAlignment.MiddleCenter).ToList();
canvas = PolygonMath.GetBoundingBox(points.Take(4).ToArray());
image = PolygonMath.GetBoundingBox(points.Skip(4).Take(4).ToArray());
gfx.FillRectangle(new SolidBrush(Color.Green), canvas);
gfx.DrawRectangle(new Pen(Color.Red, 2), image.X, image.Y, image.Width, image.Height);
}
var fileName = sourceSize + "--" + resizeSettings + ".bmp";
var filePath = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, fileName);
if (File.Exists(filePath))
{
File.Delete(filePath);
}
bmp.Save(filePath, ImageFormat.Bmp);
Trace.WriteLine("Source: " + sourceSize);
Trace.WriteLine("Destination: " + resizeSettings);
Trace.WriteLine(" Result: " + filePath);
}
}
public override void RenderTo(Resizing.ImageState s)
{
if (string.IsNullOrEmpty(Text))
{
return;
}
string finalText = Text;
if (finalText.IndexOf('#') > -1)
{
Regex r = new Regex("\\#\\{([^}]+)\\}");
finalText = r.Replace(finalText, delegate(Match m){
string val = s.settings[m.Groups[1].Value];
if (val == null)
{
return("");
}
else
{
return(val);
}
});
}
SizeF naturalSize = SizeF.Empty;
SizeF unrotatedSize = SizeF.Empty;
RectangleF bounds = this.CalculateLayerCoordinates(s, delegate(double maxwidth, double maxheight) {
using (Font f = GetFont())
using (StringFormat sf = GetFormat()){
naturalSize = s.destGraphics.MeasureString(finalText, f, new PointF(), sf);
SizeF size = naturalSize;
unrotatedSize = Fill ? PolygonMath.ScaleInside(size, new SizeF((float)maxwidth, (float)maxheight)) : size;
if (Angle != 0)
{
size = PolygonMath.GetBoundingBox(PolygonMath.RotatePoly(PolygonMath.ToPoly(new RectangleF(new PointF(0, 0), size)), Angle)).Size;
}
if (Fill)
{
size = PolygonMath.ScaleInside(size, new SizeF((float)maxwidth, (float)maxheight));
}
f.FontFamily.Dispose();
return(PolygonMath.RoundPoints(size));
}
}, true);
using (Font f = GetFont()) {
s.destGraphics.SmoothingMode = SmoothingMode.HighQuality;
s.destGraphics.TextRenderingHint = Rendering; // Utils.parseEnum<TextRenderingHint>(s.settings["watermark.rendering"], this.Rendering); ;
s.destGraphics.PixelOffsetMode = PixelOffsetMode.HighQuality;
s.destGraphics.InterpolationMode = InterpolationMode.HighQualityBicubic;
s.destGraphics.CompositingMode = CompositingMode.SourceOver;
s.destGraphics.CompositingQuality = CompositingQuality.HighQuality;
s.destGraphics.ResetTransform();
if (Angle != 0)
{
s.destGraphics.RotateTransform((float)Angle);
}
s.destGraphics.ScaleTransform(unrotatedSize.Width / naturalSize.Width, unrotatedSize.Height / naturalSize.Height);
s.destGraphics.TranslateTransform(bounds.X, bounds.Y, MatrixOrder.Append);
using (StringFormat sf = GetFormat()) {
DrawString(s.destGraphics, finalText, f, new Point(0, 0), sf);
}
s.destGraphics.ResetTransform();
f.FontFamily.Dispose();
}
}
/// <summary>
/// Builds an FIBitmap from the stream and job.Settings
/// </summary>
/// <param name="original"></param>
/// <param name="supportsTransparency"></param>
/// <param name="mayUnloadOriginal"></param>
/// <param name="job"></param>
/// <returns></returns>
protected FIBITMAP buildFiBitmap(ref FIBITMAP original, ImageJob job, bool supportsTransparency, bool mayUnloadOriginal)
{
ResizeSettings settings = job.Settings;
if (original.IsNull)
{
return(FIBITMAP.Zero);
}
FIBITMAP final = FIBITMAP.Zero;
//Find the image size
Size orig = new Size((int)FreeImage.GetWidth(original), (int)FreeImage.GetHeight(original));
//Calculate the new size of the image and the canvas.
ImageState state = new ImageState(settings, orig, true);
state.Job = job;
c.CurrentImageBuilder.Process(state);
RectangleF imageDest = PolygonMath.GetBoundingBox(state.layout["image"]);
if (imageDest.Width != orig.Width || imageDest.Height != orig.Height)
{
//Rescale
bool temp;
final = FreeImage.Rescale(original, (int)imageDest.Width, (int)imageDest.Height, FreeImageScalingPlugin.ParseResizeAlgorithm(settings["fi.scale"], FREE_IMAGE_FILTER.FILTER_BOX, out temp));
if (mayUnloadOriginal)
{
FreeImage.UnloadEx(ref original);
}
if (final.IsNull)
{
return(FIBITMAP.Zero);
}
}
else
{
final = original;
}
RGBQUAD bgcolor = default(RGBQUAD);
bgcolor.Color = settings.BackgroundColor;
if (settings.BackgroundColor == Color.Transparent && !supportsTransparency)
{
bgcolor.Color = Color.White;
}
//If we need to leave padding, do so.
BoxPadding outsideImage = new BoxPadding(imageDest.Left, imageDest.Top, state.destSize.Width - imageDest.Right, state.destSize.Height - imageDest.Bottom);
if (outsideImage.All != 0)
{
var old = final;
//Extend canvas
final = FreeImage.EnlargeCanvas <RGBQUAD>(old,
(int)outsideImage.Left, (int)outsideImage.Top, (int)outsideImage.Right, (int)outsideImage.Bottom,
bgcolor.Color != Color.Transparent ? new Nullable <RGBQUAD>(bgcolor) : null,
FREE_IMAGE_COLOR_OPTIONS.FICO_RGBA);
if (old == original)
{
if (mayUnloadOriginal)
{
FreeImage.UnloadEx(ref original);
old = original;
}
}
else
{
FreeImage.UnloadEx(ref old); //'old' has the original value of 'final', which we allocated.
}
if (final.IsNull)
{
return(FIBITMAP.Zero);
}
}
if (!final.IsNull)
{
job.ResultInfo["final.width"] = (int)FreeImage.GetWidth(final);
job.ResultInfo["final.height"] = (int)FreeImage.GetHeight(final);
}
return(final);
}
RectangleF SalientBoundingBox()
{
return(PolygonMath.GetBoundingBox(Regions
.SelectMany(r => new[] { r.Area.Location, new PointF(r.Area.Right, r.Area.Bottom) })
.ToArray()));
}