protected override Effect GetEffect(ImageGenerationContext context, FastBitmap source)
{
// Fill temporary graphics buffer with mask (currently always a rectangle).
DrawingVisual dv = new DrawingVisual
{
Effect = new BlurEffect
{
Radius = Radius,
KernelType = KernelType.Gaussian
}
};
DrawingContext dc = dv.RenderOpen();
dc.DrawImage(source.InnerBitmap, new Rect(0, 0, source.Width, source.Height));
dc.Close();
RenderTargetBitmap rtb = RenderTargetBitmapUtility.CreateRenderTargetBitmap(source.Width, source.Height);
rtb.Render(dv);
Brush blurredImage = new ImageBrush(rtb);
return(new UnsharpMaskEffect
{
BlurMask = blurredImage,
Amount = Amount / 100.0,
Threshold = Threshold
});
}
public Task <GeneratedImage> GenerateImageAsync()
{
// Create image in separate thread, and wait for result.
var context = new ImageGenerationContext(HttpContext.Current);
return(new TaskFactory(DispatcherTaskScheduler.Default)
.StartNew(() =>
{
var image = CreateImage(context);
var properties = new ImageProperties
{
ColorDepth = ColorDepth,
Format = ImageFormat,
JpegCompressionLevel = JpegCompressionLevel
};
if (image != null)
{
image.Freeze();
properties.Width = image.PixelWidth;
properties.Height = image.PixelHeight;
}
properties.IsImagePresent = (image != null);
return new GeneratedImage(properties, image);
}));
}
protected override sealed void CreateImage(ImageGenerationContext context)
{
base.CreateImage(context);
Rect bounds = new Rect(StrokeWidth / 2, StrokeWidth / 2,
CalculatedWidth - StrokeWidth,
CalculatedHeight - StrokeWidth);
Brush brush = Fill.GetBrush();
Pen pen = GetPen();
DrawingVisual dv = new DrawingVisual();
DrawingContext dc = dv.RenderOpen();
if (Roundness == 0)
{
dc.DrawRectangle(brush, pen, bounds);
}
else
{
dc.DrawRoundedRectangle(brush, pen, bounds, Roundness, Roundness);
}
dc.Close();
RenderTargetBitmap rtb = RenderTargetBitmapUtility.CreateRenderTargetBitmap(CalculatedWidth, CalculatedHeight);
rtb.Render(dv);
Bitmap = new FastBitmap(rtb);
}
protected sealed override void CreateImage(ImageGenerationContext context)
{
base.CreateImage(context);
Rect bounds = new Rect(StrokeWidth / 2, StrokeWidth / 2,
CalculatedWidth - StrokeWidth,
CalculatedHeight - StrokeWidth);
Brush brush = Fill.GetBrush();
PointCollection points = GetPoints(bounds);
PathGeometry geometry = CanonicalSplineHelper.CreateSpline(points, Roundness / 100.0, null, true, true, 0.25);
Pen pen = GetPen();
DrawingVisual dv = new DrawingVisual();
DrawingContext dc = dv.RenderOpen();
// Draw polygon.
dc.DrawGeometry(brush, pen, geometry);
dc.Close();
RenderTargetBitmap rtb = RenderTargetBitmapUtility.CreateRenderTargetBitmap(CalculatedWidth, CalculatedHeight);
rtb.Render(dv);
Bitmap = new FastBitmap(rtb);
}
protected override Effect GetEffect(ImageGenerationContext context, FastBitmap source)
{
return(new ContrastAdjustmentEffect
{
Level = (Level + 100) / 40.0
});
}
private void UseFormattedText(ImageGenerationContext context, RenderCallback renderCallback)
{
Brush textBrush = new SolidColorBrush(ForeColor.ToWpfColor());
FontDescription fontDescription = Font.GetFontDescription(context);
var formattedText = new FormattedText(
Text, CultureInfo.CurrentCulture, FlowDirection.LeftToRight,
fontDescription.Typeface, fontDescription.Size, textBrush);
formattedText.SetTextDecorations(fontDescription.TextDecorations);
if (Width != null)
{
formattedText.MaxTextWidth = Width.Value;
}
if (Height != null)
{
formattedText.MaxTextHeight = Height.Value;
}
if (!Multiline)
{
formattedText.MaxLineCount = 1;
}
formattedText.Trimming = TextTrimming.None;
//formattedText.TextAlignment = HorizontalTextAlignment;
renderCallback(formattedText);
}
protected override Effect GetEffect(ImageGenerationContext context, FastBitmap source)
{
// Get curves either from Curves collection or ACV file.
CurveCollection curves = GetCurves(context);
// Check that there are at least 4 curves.
if (curves.Count < 4)
{
throw new DynamicImageException(
"At least 4 curves (corresponding to Composite, Red, Green, Blue) must be specified.");
}
// Convert mathematical curve definitions into 4x256 lookup texture (Composite, Red, Green, Blue are the 4 "columns").
FastBitmap curvesLookup = new FastBitmap(4, 256);
curvesLookup.Lock();
for (int x = 0; x < 4; ++x)
{
IEnumerable <CurvePoint> points = curves[x].Points;
float[] xValues = points.Select(p => (float)p.Input).ToArray();
float[] yValues = points.Select(p => (float)p.Output).ToArray();
float[] derivatives = CubicSplineUtility.CalculateSpline(xValues, yValues);
for (int y = 0; y < 256; ++y)
{
curvesLookup[x, y] = SWMColor.FromRgb((byte)CubicSplineUtility.InterpolateSpline(xValues, yValues, derivatives, y), 0, 0);
}
}
curvesLookup.Unlock();
return(new CurvesEffect
{
CurvesLookup = new ImageBrush(curvesLookup.InnerBitmap)
});
}
protected override Effect GetEffect(ImageGenerationContext context, FastBitmap source)
{
return(new BrightnessAdjustmentEffect
{
Level = this.Level / 100.0
});
}
protected override Effect GetEffect(ImageGenerationContext context, FastBitmap source)
{
return(new EmbossEffect
{
Amount = Amount,
Width = Width / (double)source.Width
});
}
public override FastBitmap GetBitmap(ImageGenerationContext context)
{
using (var webClient = new ImpatientWebClient(Timeout))
{
var bytes = webClient.DownloadData(Url);
return(new FastBitmap(bytes));
}
}
protected override Effect GetEffect(ImageGenerationContext context, FastBitmap source)
{
return(new ColorTintEffect
{
Amount = Amount / 100.0,
RequiredColor = Color.ToWpfColor()
});
}
public override FastBitmap GetBitmap(ImageGenerationContext context)
{
byte[] bytes = this.Bytes;
if (bytes != null && bytes.Length > 0)
{
return(new FastBitmap(bytes));
}
return(null);
}
protected override Effect GetEffect(ImageGenerationContext context, FastBitmap source)
{
return(new BlurEffect
{
KernelType = KernelType.Gaussian,
Radius = Radius,
RenderingBias = RenderingBias.Quality
});
}
private CurveCollection GetCurves(ImageGenerationContext context)
{
if (!string.IsNullOrEmpty(PhotoshopCurvesFileName))
{
return(PhotoshopCurvesReader.ReadPhotoshopCurvesFile(FileSourceHelper.ResolveFileName(context, PhotoshopCurvesFileName)));
}
return(Curves);
}
public override Scene GetScene(ImageGenerationContext context)
{
string resolvedFileName = FileSourceHelper.ResolveFileName(context, FileName);
if (File.Exists(resolvedFileName))
{
return(MeshellatorLoader.ImportFromFile(resolvedFileName));
}
return(null);
}
private Size MeasureString(ImageGenerationContext context)
{
Size size = System.Windows.Size.Empty;
UseFormattedText(context, ft =>
{
size = new Size(ft.WidthIncludingTrailingWhitespace, ft.Height);
});
return(size);
}
public override FastBitmap GetBitmap(ImageGenerationContext context)
{
string resolvedFileName = FileSourceHelper.ResolveFileName(context, FileName);
if (File.Exists(resolvedFileName))
{
return(new FastBitmap(resolvedFileName));
}
return(null);
}
protected override Effect GetEffect(ImageGenerationContext context, FastBitmap source)
{
return(new DropShadowEffect
{
Direction = 0,
Color = Color.ToWpfColor(),
BlurRadius = Size,
ShadowDepth = 0,
Opacity = Opacity
});
}
protected override void CreateImage(ImageGenerationContext context)
{
if (this.Width != null)
{
this.CalculatedWidth = this.Width.Value;
}
if (this.Height != null)
{
this.CalculatedHeight = this.Height.Value;
}
}
protected override void CreateImage(ImageGenerationContext context)
{
// If width and height are not set, we need to measure the string.
int calculatedWidth, calculatedHeight;
Size measuredSize = MeasureString(context);
if (Width == null || Height == null)
{
double width = Width ?? measuredSize.Width;
double height = Height ?? measuredSize.Height;
calculatedWidth = (int)width;
calculatedHeight = (int)height;
}
else // otherwise just create the image at the desired size
{
calculatedWidth = Width.Value;
calculatedHeight = Height.Value;
}
#region Draw text
DrawingVisual dv = new DrawingVisual();
DrawingContext dc = dv.RenderOpen();
//RenderOptions.SetClearTypeHint(dv, ClearTypeHint.Auto);
TextOptions.SetTextRenderingMode(dv, TextRenderingMode.Auto);
//TextOptions.SetTextFormattingMode(dv, TextFormattingMode.Ideal)
UseFormattedText(context, ft =>
{
Pen pen = null;
if (StrokeWidth > 0 && StrokeColor != null)
{
pen = new Pen(new SolidColorBrush(StrokeColor.Value.ToWpfColor()), StrokeWidth);
}
// Calculate position to draw text at, based on vertical text alignment.
int x = CalculateHorizontalPosition((int)measuredSize.Width);
int y = CalculateVerticalPosition((int)measuredSize.Height);
dc.DrawGeometry(new SolidColorBrush(ForeColor.ToWpfColor()), pen,
ft.BuildGeometry(new Point(x, y)));
});
dc.Close();
RenderTargetBitmap rtb = RenderTargetBitmapUtility.CreateRenderTargetBitmap(calculatedWidth, calculatedHeight);
rtb.Render(dv);
#endregion
Bitmap = new FastBitmap(rtb);
}
protected override Effect GetEffect(ImageGenerationContext context, FastBitmap source)
{
FastBitmap maskBitmap = MaskImage.GetBitmap(context);
_maskImageWidth = maskBitmap.Width;
_maskImageHeight = maskBitmap.Height;
return(new ClippingMaskEffect
{
Mask = new ImageBrush(maskBitmap.InnerBitmap),
InputCoordsOffset = new Vector(MaskPositionX / (double)source.Width, MaskPositionY / (double)source.Height),
InputCoordsScale = new Vector(_maskImageWidth / (double)source.Width, _maskImageHeight / (double)source.Height)
});
}
public sealed override void ApplyFilter(ImageGenerationContext context, FastBitmap bitmap)
{
OnBeginApplyFilter(bitmap);
// get destination dimensions
int destWidth, destHeight;
bool shouldContinue = GetDestinationDimensions(bitmap, out destWidth, out destHeight);
if (!shouldContinue)
{
return;
}
FastBitmap destination = new FastBitmap(destWidth, destHeight);
// copy metadata
// TODO
/*foreach (PropertyItem propertyItem in bitmap.InnerBitmap.PropertyItems)
* destination.InnerBitmap.SetPropertyItem(propertyItem);*/
int width = bitmap.Width;
int height = bitmap.Height;
OriginalSpace = new Int32Rect(0, 0, width, height);
Int32Rect transformedSpace = GetTransformedSpace(OriginalSpace);
try
{
bitmap.Lock();
destination.Lock();
if (InterpolationMode == InterpolationMode.NearestNeighbor)
{
FilterPixelsNearestNeighbor(bitmap, destination, width, height, transformedSpace);
}
else
{
FilterPixelsBilinear(bitmap, destination, width, height, transformedSpace);
}
}
finally
{
destination.Unlock();
bitmap.Unlock();
}
bitmap.InnerBitmap = destination.InnerBitmap;
}
public void Process(ImageGenerationContext context)
{
CreateImage(context);
if (Bitmap != null)
{
foreach (Filter filter in Filters)
{
if (filter.Enabled)
{
filter.ApplyFilter(context, Bitmap);
}
}
}
}
protected override Effect GetEffect(ImageGenerationContext context, FastBitmap source)
{
FastBitmap transferLookup = new FastBitmap(1, 256);
transferLookup.Lock();
for (int y = 0; y < 256; ++y)
{
byte colorComponent = (byte)(255 * GetTransferFunctionValue(y / 255.0f));
transferLookup[0, y] = SWMColor.FromRgb(colorComponent, colorComponent, colorComponent);
}
transferLookup.Unlock();
return(new TransferEffect
{
TransferLookup = new ImageBrush(transferLookup.InnerBitmap)
});
}
public FontDescription GetFontDescription(ImageGenerationContext context)
{
FontFamily fontFamily;
if (!string.IsNullOrEmpty(CustomFontFile))
{
string fontFileName = FileSourceHelper.ResolveFileName(context, CustomFontFile);
fontFamily = new FontFamily(fontFileName + "#" + Name);
}
else
{
fontFamily = new FontFamily(Name);
}
Typeface typeface = new Typeface(fontFamily, GetStyle(), GetWeight(), FontStretches.Normal);
return(new FontDescription(typeface, GetTextDecorations(), Size));
}
protected override void CreateImage(ImageGenerationContext context)
{
FastBitmap sourceValue = this.Source.GetBitmap(context);
if (sourceValue != null && sourceValue.InnerBitmap != null)
{
this.Bitmap = sourceValue;
}
else if (AlternateSource != null)
{
sourceValue = this.AlternateSource.GetBitmap(context);
if (sourceValue != null && sourceValue.InnerBitmap != null)
{
this.Bitmap = sourceValue;
}
}
}
protected override void CreateImage(ImageGenerationContext context)
{
Bitmap = new FastBitmap(Width, Height);
Bitmap.Lock();
for (int y = 0; y < Height; y++)
{
for (int x = 0; x < Width; x++)
{
ColorHsv colorHsv = CalculateFractalColor(x, y);
var color = (Color)colorHsv;
Bitmap[x, y] = color.ToWpfColor();
}
}
Bitmap.Unlock();
}
protected override void CreateImage(ImageGenerationContext context)
{
GhostscriptUtil.EnsureDll(context);
string outputFileName = Path.GetTempFileName();
try
{
string filename = FileSourceHelper.ResolveFileName(context, SourceFileName);
GhostscriptWrapper.GeneratePageThumb(filename, outputFileName, PageNumber, Width, Height);
Bitmap = new FastBitmap(File.ReadAllBytes(outputFileName));
}
finally
{
File.Delete(outputFileName);
}
}
protected override void CreateImage(ImageGenerationContext context)
{
string outputFileName = Path.GetTempFileName();
try
{
if (!new CutyCaptWrapper().SaveScreenShot(WebsiteUrl, outputFileName, Timeout, BrowserWidth))
{
return;
}
Bitmap = new FastBitmap(File.ReadAllBytes(outputFileName));
}
finally
{
File.Delete(outputFileName);
}
}
protected override void CreateImage(ImageGenerationContext context)
{
Scene scene = Source.GetScene(context);
using (var renderer = new WarpSceneRenderer(scene, Width, Height))
{
renderer.Initialize();
renderer.Options.TriangleWindingOrderReversed = ReverseWindingOrder;
renderer.Options.BackgroundColor = new Nexus.Color(BackgroundColour.A, BackgroundColour.R, BackgroundColour.G, BackgroundColour.B);
renderer.Options.LightingEnabled = LightingEnabled;
Viewport viewport = new Viewport(0, 0, Width, Height);
Nexus.Graphics.Cameras.Camera camera = (Camera != null)
? Camera.GetNexusCamera(scene, viewport)
: new AutoCamera().GetNexusCamera(scene, viewport);
BitmapSource renderedBitmap = renderer.Render(camera);
Bitmap = new FastBitmap(renderedBitmap);
}
}
