/// <summary> /// Draws the specified image, using its original physical size, at the location specified by a coordinate pair. /// </summary> /// <param name="image">Image.</param> /// <param name="x">The x coordinate.</param> /// <param name="y">The y coordinate.</param> public void DrawImage(Image image, int x, int y) { var width = image.physicalSize.Width; var height = image.physicalSize.Height; if (graphicsUnit != GraphicsUnit.Pixel) { width = ConversionHelpers.GraphicsUnitConversion(GraphicsUnit.Pixel, graphicsUnit, image.HorizontalResolution, width); height = ConversionHelpers.GraphicsUnitConversion(GraphicsUnit.Pixel, graphicsUnit, image.VerticalResolution, height); } DrawImage(image, new RectangleF(x, y, width, height)); }
/// <summary> /// Draws the specified portion of the specified Image at the specified location and with the specified size. /// /// The srcRect parameter specifies a rectangular portion of the image object to draw. This portion is scaled /// up or down (in the case where source rectangle overruns the bounds of the image) to fit inside the rectangle /// specified by the destRect parameter. /// </summary> /// <param name="image">Image.</param> /// <param name="destRect">Destination rect.</param> /// <param name="srcRect">Source rect.</param> /// <param name="srcUnit">Source unit.</param> public void DrawImage(Image image, RectangleF destRect, RectangleF srcRect, GraphicsUnit srcUnit) { if (image == null) { throw new ArgumentNullException("image"); } var srcRect1 = srcRect; // If the source units are not the same we need to convert them // The reason we check for Pixel here is that our graphics already has the Pixel's baked into the model view transform if (srcUnit != graphicsUnit && srcUnit != GraphicsUnit.Pixel) { ConversionHelpers.GraphicsUnitConversion(srcUnit, graphicsUnit, image.HorizontalResolution, image.VerticalResolution, ref srcRect1); } if (srcRect1.Location == Point.Empty && srcRect1.Size == image.Size) { DrawImage(image, destRect); return; } if (image.NativeCGImage == null) { throw new NotImplementedException(); } // Obtain the subImage var subImage = image.NativeCGImage.WithImageInRect(new CGRect(srcRect1.X, srcRect1.Y, srcRect1.Width, srcRect1.Height)); // If we do not have anything to draw then we exit here if (subImage == null || subImage.Width == 0 || subImage.Height == 0) { return; } var transform = image.imageTransform; // Reset our height on the transform to account for subImage transform.y0 = subImage.Height; // Make sure we scale the image in case the source rectangle // overruns our subimage bouncs width and/or height float scaleX = subImage.Width / srcRect1.Width; float scaleY = subImage.Height / srcRect1.Height; transform.Scale(scaleX, scaleY); // Now draw our image DrawImage(destRect, subImage, transform); }
void CreateNativeFont(FontFamily family, float emSize, FontStyle style, GraphicsUnit unit, byte gdiCharSet, bool gdiVerticalFont) { this.sizeInPoints = ConversionHelpers.GraphicsUnitConversion(unit, GraphicsUnit.Point, 96f, emSize); this.size = emSize; this.unit = unit; var size = sizeInPoints * 96f / 72f; var traits = CTFontSymbolicTraits.None; traits |= Bold ? CTFontSymbolicTraits.Bold : 0; traits |= Italic ? CTFontSymbolicTraits.Italic : 0; this.nativeFont = CTFontWithFamily(family, traits, size); }
/// <summary> /// Draws the specified image, using its original physical size, at the location specified by a coordinate pair. /// </summary> /// <param name="image">Image.</param> /// <param name="x">The x coordinate.</param> /// <param name="y">The y coordinate.</param> public void DrawImage(Image image, float x, float y) { var size = image.physicalSize; var width = size.Width; var height = size.Height; if (graphicsUnit != GraphicsUnit.Pixel) { width = ConversionHelpers.GraphicsUnitConversion(GraphicsUnit.Pixel, graphicsUnit, image.HorizontalResolution, width); height = ConversionHelpers.GraphicsUnitConversion(GraphicsUnit.Pixel, graphicsUnit, image.VerticalResolution, height); } var uss = context.ConvertSizeToUserSpace(new CGSize(width, height)); DrawImage(image, new RectangleF(x, y, (float)uss.Width, (float)uss.Height)); }
public Font(string familyName, float emSize, FontStyle style, GraphicsUnit unit, byte gdiCharSet, bool gdiVerticalFont) { if (emSize <= 0) { throw new ArgumentException("emSize is less than or equal to 0, evaluates to infinity, or is not a valid number.", "emSize"); } // convert to 96 Dpi to be consistent with Windows var dpiSize = emSize * dpiScale; try { nativeFont = new CTFont(familyName, dpiSize); } catch { //nativeFont = new CTFont("Lucida Grande",emSize); nativeFont = new CTFont("Helvetica", dpiSize); } CTFontSymbolicTraits tMask = CTFontSymbolicTraits.None; if ((style & FontStyle.Bold) == FontStyle.Bold) { tMask |= CTFontSymbolicTraits.Bold; } if ((style & FontStyle.Italic) == FontStyle.Italic) { tMask |= CTFontSymbolicTraits.Italic; } strikeThrough = (style & FontStyle.Strikeout) == FontStyle.Strikeout; underLine = (style & FontStyle.Underline) == FontStyle.Underline; var nativeFont2 = nativeFont.WithSymbolicTraits(dpiSize, tMask, tMask); if (nativeFont2 != null) { nativeFont = nativeFont2; } sizeInPoints = emSize; this.unit = unit; // FIXME // I do not like the hard coded 72 but am just trying to boot strap the Font class right now size = ConversionHelpers.GraphicsUnitConversion(GraphicsUnit.Point, unit, 72.0f, sizeInPoints); }
/// <summary> /// Draws a portion of an image at a specified location. /// </summary> /// <param name="image">Image.</param> /// <param name="x">The x coordinate.</param> /// <param name="y">The y coordinate.</param> /// <param name="srcRect">Source rect.</param> /// <param name="srcUnit">Source unit.</param> public void DrawImage(Image image, float x, float y, RectangleF srcRect, GraphicsUnit srcUnit) { if (image == null) { throw new ArgumentNullException("image"); } var srcRect1 = srcRect; // If the source units are not the same we need to convert them // The reason we check for Pixel here is that our graphics already has the Pixel's baked into the model view transform if (srcUnit != graphicsUnit && srcUnit != GraphicsUnit.Pixel) { ConversionHelpers.GraphicsUnitConversion(srcUnit, graphicsUnit, image.VerticalResolution, image.HorizontalResolution, ref srcRect1); } DrawImage(image, new RectangleF(x, y, srcRect1.Width, srcRect1.Height), srcRect1, graphicsUnit); }
/// <summary> /// Draws a portion of an image at a specified location. /// </summary> /// <param name="image">Image.</param> /// <param name="x">The x coordinate.</param> /// <param name="y">The y coordinate.</param> /// <param name="srcRect">Source rect.</param> /// <param name="srcUnit">Source unit.</param> public void DrawImage(Image image, int x, int y, Rectangle srcRect, GraphicsUnit srcUnit) { if (image == null) { throw new ArgumentNullException("image"); } var width = image.physicalSize.Width; var height = image.physicalSize.Height; if (graphicsUnit != GraphicsUnit.Pixel) { width = ConversionHelpers.GraphicsUnitConversion(GraphicsUnit.Pixel, graphicsUnit, image.HorizontalResolution, width); height = ConversionHelpers.GraphicsUnitConversion(GraphicsUnit.Pixel, graphicsUnit, image.VerticalResolution, height); } DrawImage(image, new RectangleF(x, y, width, height), srcRect, srcUnit); }
void CreateNativeFont(FontFamily family, float emSize, FontStyle style, GraphicsUnit unit, byte gdiCharSet, bool gdiVerticalFont) { this.sizeInPoints = ConversionHelpers.GraphicsUnitConversion(unit, GraphicsUnit.Point, 96f, emSize); this.underLine = 0 != (style & FontStyle.Underline); this.strikeThrough = 0 != (style & FontStyle.Strikeout); this.size = emSize; this.unit = unit; var size = sizeInPoints * 96f / 72f; var traits = CTFontSymbolicTraits.None; traits |= style.IsBold() ? CTFontSymbolicTraits.Bold : 0; traits |= style.IsItalic() ? CTFontSymbolicTraits.Italic : 0; this.nativeFont = CTFontWithFamily(family, traits, size); }
private void CreateNativeFont(FontFamily familyName, float emSize, FontStyle style, GraphicsUnit unit, byte gdiCharSet, bool gdiVerticalFont) { // convert to 96 Dpi to be consistent with Windows var dpiSize = emSize * dpiScale; try { nativeFont = new CTFont(familyName.NativeDescriptor, dpiSize); } catch { nativeFont = new CTFont("Helvetica", dpiSize); } CTFontSymbolicTraits tMask = CTFontSymbolicTraits.None; if ((style & FontStyle.Bold) == FontStyle.Bold) { tMask |= CTFontSymbolicTraits.Bold; } if ((style & FontStyle.Italic) == FontStyle.Italic) { tMask |= CTFontSymbolicTraits.Italic; } strikeThrough = (style & FontStyle.Strikeout) == FontStyle.Strikeout; underLine = (style & FontStyle.Underline) == FontStyle.Underline; var nativeFont2 = nativeFont.WithSymbolicTraits(dpiSize, tMask, tMask); if (nativeFont2 != null) { nativeFont = nativeFont2; } bold = (nativeFont.SymbolicTraits & CTFontSymbolicTraits.Bold) == CTFontSymbolicTraits.Bold; italic = (nativeFont.SymbolicTraits & CTFontSymbolicTraits.Italic) == CTFontSymbolicTraits.Italic; sizeInPoints = emSize; this.unit = unit; // FIXME // I do not like the hard coded 72 but am just trying to boot strap the Font class right now size = ConversionHelpers.GraphicsUnitConversion(GraphicsUnit.Point, unit, 72.0f, sizeInPoints); }
public void DrawImage(Image image, Rectangle destRect, float srcX, float srcY, float srcWidth, float srcHeight, GraphicsUnit srcUnit, ImageAttributes imageAttrs) { if (image == null) { throw new ArgumentNullException("image"); } var srcRect1 = new RectangleF(srcX, srcY, srcWidth, srcHeight); // If the source units are not the same we need to convert them // The reason we check for Pixel here is that our graphics already has the Pixel's baked into the model view transform if (srcUnit != graphicsUnit && srcUnit != GraphicsUnit.Pixel) { ConversionHelpers.GraphicsUnitConversion(srcUnit, graphicsUnit, image.HorizontalResolution, image.VerticalResolution, ref srcRect1); } if (image.NativeCGImage == null) { DrawImage(image, destRect); return; } // Obtain the subImage var subImage = image.NativeCGImage.WithImageInRect(srcRect1.ToCGRect()); // If we do not have anything to draw then we exit here if (subImage.Width == 0 || subImage.Height == 0) { return; } // var transform = image.imageTransform; //// // Reset our height on the transform to account for subImage // transform.y0 = subImage.Height; //// //// // Make sure we scale the image in case the source rectangle //// // overruns our subimage bouncs width and/or height // float scaleX = subImage.Width/srcRect1.Width; // float scaleY = subImage.Height/srcRect1.Height; // transform.Scale (scaleX, scaleY); bool attributesSet = imageAttrs != null && (imageAttrs.isColorMatrixSet || imageAttrs.isGammaSet); if (attributesSet) { InitializeImagingContext(); CIImage result = subImage; if (imageAttrs.isColorMatrixSet) { var ciFilter = CIFilter.FromName("CIColorMatrix"); ciFilter.SetDefaults(); ciFilter.SetValueForKey(result, new NSString("inputImage")); var inputRVector = new CIVector(imageAttrs.colorMatrix.Matrix00, imageAttrs.colorMatrix.Matrix01, imageAttrs.colorMatrix.Matrix02, imageAttrs.colorMatrix.Matrix03); var inputGVector = new CIVector(imageAttrs.colorMatrix.Matrix10, imageAttrs.colorMatrix.Matrix11, imageAttrs.colorMatrix.Matrix12, imageAttrs.colorMatrix.Matrix13); var inputBVector = new CIVector(imageAttrs.colorMatrix.Matrix20, imageAttrs.colorMatrix.Matrix21, imageAttrs.colorMatrix.Matrix22, imageAttrs.colorMatrix.Matrix23); var inputAVector = new CIVector(imageAttrs.colorMatrix.Matrix30, imageAttrs.colorMatrix.Matrix31, imageAttrs.colorMatrix.Matrix32, imageAttrs.colorMatrix.Matrix33); var inputBiasVector = new CIVector(imageAttrs.colorMatrix.Matrix40, imageAttrs.colorMatrix.Matrix41, imageAttrs.colorMatrix.Matrix42, imageAttrs.colorMatrix.Matrix43); ciFilter.SetValueForKey(inputRVector, new NSString("inputRVector")); ciFilter.SetValueForKey(inputGVector, new NSString("inputGVector")); ciFilter.SetValueForKey(inputBVector, new NSString("inputBVector")); ciFilter.SetValueForKey(inputAVector, new NSString("inputAVector")); ciFilter.SetValueForKey(inputBiasVector, new NSString("inputBiasVector")); result = (CIImage)ciFilter.ValueForKey(new NSString("outputImage")); } if (imageAttrs.isGammaSet) { var ciFilter = CIFilter.FromName("CIGammaAdjust"); ciFilter.SetDefaults(); ciFilter.SetValueForKey(result, new NSString("inputImage")); var inputPower = NSNumber.FromFloat(imageAttrs.gamma); ciFilter.SetValueForKey(inputPower, new NSString("inputPower")); result = (CIImage)ciFilter.ValueForKey(new NSString("outputImage")); } subImage = ciContext.CreateCGImage(result, result.Extent); } transform = image.imageTransform; transform.y0 = subImage.Height; float scaleX1 = subImage.Width / srcRect1.Width; float scaleY1 = subImage.Height / srcRect1.Height; transform.Scale(scaleX1, scaleY1); // Now draw our image DrawImage(destRect, subImage, transform); }
/// <summary> /// Draws the specified portion of the specified Image at the specified location and with the specified size. /// /// The destPoints specifies a parallelogram with the first point specifying the upper left corner, /// second point specifying the upper right corner and the third point specifying the lower left corner. /// /// The srcRect parameter specifies a rectangular portion of the image object to draw. This portion is scaled /// up or down (in the case where source rectangle overruns the bounds of the image) to fit inside the rectangle /// specified by the destRect parameter. /// </summary> /// <param name="image">Image.</param> /// <param name="destPoints">Destination points.</param> /// <param name="srcRect">Source rect.</param> /// <param name="srcUnit">Source unit.</param> public void DrawImage(Image image, PointF [] destPoints, RectangleF srcRect, GraphicsUnit srcUnit) { if (image == null) { throw new ArgumentNullException("image"); } if (destPoints == null) { throw new ArgumentNullException("destPoints"); } if (destPoints.Length < 3) { throw new ArgumentException("Destination points must be an array with a length of 3 or 4. " + "A length of 3 defines a parallelogram with the upper-left, upper-right, " + "and lower-left corners. A length of 4 defines a quadrilateral with the " + "fourth element of the array specifying the lower-right coordinate."); } // Windows throws a Not Implemented error if the points are more than 3 if (destPoints.Length > 3) { throw new NotImplementedException(); } var srcRect1 = srcRect; // If the source units are not the same we need to convert them // The reason we check for Pixel here is that our graphics already has the Pixel's baked into the model view transform if (srcUnit != graphicsUnit && srcUnit != GraphicsUnit.Pixel) { ConversionHelpers.GraphicsUnitConversion(srcUnit, graphicsUnit, image.HorizontalResolution, image.VerticalResolution, ref srcRect1); } if (srcRect1.Location == Point.Empty && srcRect1.Size == image.Size) { DrawImage(image, destPoints); return; } if (image.NativeCGImage == null) { throw new NotImplementedException(); } // Obtain the subImage var subImage = image.NativeCGImage.WithImageInRect(srcRect1.ToCGRect()); // If we do not have anything to draw then we exit here if (subImage.Width == 0 || subImage.Height == 0) { return; } // create our rectangle. Offset is 0 because the CreateGeometricTransform bakes our x,y offset in there. var rect = new RectangleF(0, 0, destPoints [1].X - destPoints [0].X, destPoints [2].Y - destPoints [0].Y); // We need to flip our Y axis so the image appears right side up var geoTransform = new CGAffineTransform(1, 0, 0, -1, 0, rect.Height); // Make sure we scale the image in case the source rectangle // overruns our subimage bounds (width and/or height) float scaleX = subImage.Width / srcRect1.Width; float scaleY = subImage.Height / srcRect1.Height; geoTransform.Scale(scaleX, scaleY); //var geott = GeomUtilities.CreateGeometricTransform (rect, destPoints); geoTransform.Multiply(GeomUtilities.CreateGeometricTransform(rect, destPoints)); // Apply our transform to the context context.ConcatCTM(geoTransform); // now we draw our image. context.DrawImage(rect.ToCGRect(), subImage); // Now we revert our image transform from the context var revert = CGAffineTransform.CGAffineTransformInvert(geoTransform); context.ConcatCTM(revert); subImage.Dispose(); }