/// <summary>
/// Returns a <code>Shape</code> whose interior corresponds to the
/// visual representation of the specified glyph
/// within this <code>GlyphVector</code>, offset to x, y.
/// The outline returned by this method is positioned around the
/// origin of each individual glyph. </summary>
/// <param name="glyphIndex"> the index into this <code>GlyphVector</code> </param>
/// <param name="x"> the X coordinate of the location of this {@code GlyphVector} </param>
/// <param name="y"> the Y coordinate of the location of this {@code GlyphVector} </param>
/// <returns> a <code>Shape</code> that is the outline of the glyph
/// at the specified <code>glyphIndex</code> of this
/// <code>GlyphVector</code> when rendered at the specified
/// coordinates. </returns>
/// <exception cref="IndexOutOfBoundsException"> if <code>glyphIndex</code>
/// is less than 0 or greater than or equal to the number
/// of glyphs in this <code>GlyphVector</code>
/// @since 1.4 </exception>
public virtual Shape GetGlyphOutline(int glyphIndex, float x, float y)
{
Shape s = GetGlyphOutline(glyphIndex);
AffineTransform at = AffineTransform.GetTranslateInstance(x, y);
return(at.CreateTransformedShape(s));
}
public virtual void MixedWhiteSpace()
{
AffineTransform actual = TransformUtils.ParseTransform(" translate(1) translate(2) ");
AffineTransform expected = AffineTransform.GetTranslateInstance(2.25, 0);
NUnit.Framework.Assert.AreEqual(expected, actual);
}
/// <exception cref="System.Exception"/>
private static byte[] CreatePdfWithRotatedText(String text1, String text2, float rotation, bool moveTextToNextLine
, float moveTextDelta)
{
MemoryStream byteStream = new MemoryStream();
PdfDocument document = new PdfDocument(new PdfWriter(byteStream));
document.SetDefaultPageSize(new PageSize(612, 792));
PdfCanvas canvas = new PdfCanvas(document.AddNewPage());
PdfFont font = PdfFontFactory.CreateFont(StandardFonts.HELVETICA);
float x = document.GetDefaultPageSize().GetWidth() / 2;
float y = document.GetDefaultPageSize().GetHeight() / 2;
canvas.ConcatMatrix(AffineTransform.GetTranslateInstance(x, y));
canvas.MoveTo(-10, 0).LineTo(10, 0).MoveTo(0, -10).LineTo(0, 10).Stroke();
canvas.BeginText().SetFontAndSize(font, 12).ConcatMatrix(AffineTransform.GetRotateInstance((float)(rotation
/ 180f * Math.PI))).ShowText(text1);
if (moveTextToNextLine)
{
canvas.MoveText(0, moveTextDelta);
}
else
{
canvas.ConcatMatrix(AffineTransform.GetTranslateInstance(moveTextDelta, 0));
}
canvas.ShowText(text2);
canvas.EndText();
document.Close();
return(byteStream.ToArray());
}
private static byte[] CreatePdfWithArrayText(String directContentTj)
{
MemoryStream byteStream = new MemoryStream();
Document document = new Document();
PdfWriter writer = PdfWriter.GetInstance(document, byteStream);
document.SetPageSize(PageSize.LETTER);
document.Open();
PdfContentByte cb = writer.DirectContent;
BaseFont font = BaseFont.CreateFont();
cb.Transform(AffineTransform.GetTranslateInstance(100, 500));
cb.BeginText();
cb.SetFontAndSize(font, 12);
cb.InternalBuffer.Append(directContentTj + "\n");
cb.EndText();
document.Close();
byte[] pdfBytes = byteStream.ToArray();
return(pdfBytes);
}
private void DrawText(PdfWriter writer,
string text,
int fontSize,
BaseColor color,
double x,
double y,
bool vertical)
{
AffineTransform textTransform = AffineTransform.GetTranslateInstance(x, y);
if (vertical)
{
textTransform.Rotate(Math.PI / 2);
}
//writer.DirectContent.Transform(rotate90);
PdfContentByte cb = writer.DirectContent;
cb.BeginText();
////BaseFont textFont = BaseFont.CreateFont("Arial", BaseFont.CP1252, true);
cb.SetColorStroke(color);
cb.SetColorFill(color);
cb.SetFontAndSize(SearchTextFont.GetCalculatedBaseFont(false), fontSize);
cb.SetTextMatrix(textTransform); //(xPos, yPos)
cb.ShowText(text);
cb.EndText();
}
protected void ManipulatePdf(String dest)
{
PdfDocument srcDoc = new PdfDocument(new PdfReader(SRC));
PdfDocument pdfDoc = new PdfDocument(new PdfWriter(dest));
float a4Width = PageSize.A4.GetWidth();
float a4Height = PageSize.A4.GetHeight();
PageSize pagesize = new PageSize(a4Width * 4, a4Height * 2);
pdfDoc.SetDefaultPageSize(pagesize);
int numberOfPages = srcDoc.GetNumberOfPages();
int p = 1;
PdfCanvas canvas = new PdfCanvas(pdfDoc.AddNewPage());
while ((p - 1) <= numberOfPages)
{
CopyPageToDoc(canvas, srcDoc, pdfDoc, p + 3, 0);
CopyPageToDoc(canvas, srcDoc, pdfDoc, p + 12, a4Width);
CopyPageToDoc(canvas, srcDoc, pdfDoc, p + 15, a4Width * 2);
CopyPageToDoc(canvas, srcDoc, pdfDoc, p, a4Width * 3);
canvas.SaveState();
// Rotate on 180 degrees and copy pages to the top row.
AffineTransform at = AffineTransform.GetRotateInstance((float)-Math.PI);
at.Concatenate(AffineTransform.GetTranslateInstance(0, -a4Height * 2));
canvas.ConcatMatrix(at);
CopyPageToDoc(canvas, srcDoc, pdfDoc, p + 4, -a4Width);
CopyPageToDoc(canvas, srcDoc, pdfDoc, p + 11, -a4Width * 2);
CopyPageToDoc(canvas, srcDoc, pdfDoc, p + 8, -a4Width * 3);
CopyPageToDoc(canvas, srcDoc, pdfDoc, p + 7, -a4Width * 4);
canvas.RestoreState();
canvas = new PdfCanvas(pdfDoc.AddNewPage());
CopyPageToDoc(canvas, srcDoc, pdfDoc, p + 1, 0);
CopyPageToDoc(canvas, srcDoc, pdfDoc, p + 14, a4Width);
CopyPageToDoc(canvas, srcDoc, pdfDoc, p + 13, a4Width * 2);
CopyPageToDoc(canvas, srcDoc, pdfDoc, p + 2, a4Width * 3);
canvas.SaveState();
// Rotate on 180 degrees and copy pages to the top row.
canvas.ConcatMatrix(at);
CopyPageToDoc(canvas, srcDoc, pdfDoc, p + 6, -a4Width);
CopyPageToDoc(canvas, srcDoc, pdfDoc, p + 9, -a4Width * 2);
CopyPageToDoc(canvas, srcDoc, pdfDoc, p + 10, -a4Width * 3);
CopyPageToDoc(canvas, srcDoc, pdfDoc, p + 5, -a4Width * 4);
canvas.RestoreState();
if ((p - 1) / 16 < numberOfPages / 16)
{
canvas = new PdfCanvas(pdfDoc.AddNewPage());
}
p += 16;
}
pdfDoc.Close();
srcDoc.Close();
}
/// <summary>Calculate the transformation for the viewport based on the context.</summary>
/// <remarks>
/// Calculate the transformation for the viewport based on the context. Only used by elements that can create
/// viewports
/// </remarks>
/// <param name="context">the SVG draw context</param>
/// <returns>the transformation that needs to be applied to this renderer</returns>
internal virtual AffineTransform CalculateViewPortTranslation(SvgDrawContext context)
{
Rectangle viewPort = context.GetCurrentViewPort();
AffineTransform transform;
transform = AffineTransform.GetTranslateInstance(viewPort.GetX(), viewPort.GetY());
return(transform);
}
private static AffineTransform CreateGradientTransform(Rectangle2D r)
{
double cx = r.CenterX;
double cy = r.CenterY;
AffineTransform xform = AffineTransform.GetTranslateInstance(cx, cy);
xform.Scale(r.Width / 2, r.Height / 2);
xform.Translate(-cx, -cy);
return(xform);
}
private static Point[] GetRotatedSquareVertices(Point[] orthogonalSquareVertices, double angle, Point squareCenter
)
{
Point[] rotatedSquareVertices = new Point[orthogonalSquareVertices.Length];
AffineTransform.GetRotateInstance((float)angle).Transform(orthogonalSquareVertices, 0, rotatedSquareVertices
, 0, rotatedSquareVertices.Length);
AffineTransform.GetTranslateInstance((float)squareCenter.GetX(), (float)squareCenter.GetY()).Transform(rotatedSquareVertices
, 0, rotatedSquareVertices, 0, orthogonalSquareVertices.Length);
return(rotatedSquareVertices);
}
/// <summary>Creates a translate transformation.</summary>
/// <param name="values">values of the transformation</param>
/// <returns>AffineTransform for the translate operation</returns>
private static AffineTransform CreateTranslateTransformation(IList <String> values)
{
if (values.Count == 0 || values.Count > 2)
{
throw new SvgProcessingException(SvgLogMessageConstant.TRANSFORM_INCORRECT_NUMBER_OF_VALUES);
}
float translateX = CssUtils.ParseAbsoluteLength(values[0]);
float translateY = values.Count == 2 ? CssUtils.ParseAbsoluteLength(values[1]) : 0;
return(AffineTransform.GetTranslateInstance(translateX, translateY));
}
private void ApplyCoordinatesTranslation(SvgDrawContext context)
{
float xScale = 1;
float yScale = 1;
if (this.attributesAndStyles.ContainsKey(SvgConstants.Attributes.VIEWBOX))
{
//Parse viewbox parameters stuff
String viewBoxValues = attributesAndStyles.Get(SvgConstants.Attributes.VIEWBOX);
IList <String> valueStrings = SvgCssUtils.SplitValueList(viewBoxValues);
float[] viewBox = GetViewBoxValues();
xScale = context.GetCurrentViewPort().GetWidth() / viewBox[2];
yScale = context.GetCurrentViewPort().GetHeight() / viewBox[3];
}
float moveX = DEFAULT_REF_X;
if (this.attributesAndStyles.ContainsKey(SvgConstants.Attributes.REFX))
{
String refX = this.attributesAndStyles.Get(SvgConstants.Attributes.REFX);
if (CssUtils.IsPercentageValue(refX))
{
moveX = CssUtils.ParseRelativeValue(refX, context.GetRootViewPort().GetWidth());
}
else
{
moveX = ParseFontRelativeOrAbsoluteLengthOnMarker(refX);
}
//Apply scale
moveX *= -1 * xScale;
}
float moveY = DEFAULT_REF_Y;
if (this.attributesAndStyles.ContainsKey(SvgConstants.Attributes.REFY))
{
String refY = this.attributesAndStyles.Get(SvgConstants.Attributes.REFY);
if (CssUtils.IsPercentageValue(refY))
{
moveY = CssUtils.ParseRelativeValue(refY, context.GetRootViewPort().GetHeight());
}
else
{
moveY = ParseFontRelativeOrAbsoluteLengthOnMarker(refY);
}
moveY *= -1 * yScale;
}
AffineTransform translation = AffineTransform.GetTranslateInstance(moveX, moveY);
if (!translation.IsIdentity())
{
context.GetCurrentCanvas().ConcatMatrix(translation);
}
}
internal virtual AffineTransform CalculateTransformation(SvgDrawContext context)
{
Rectangle viewPort = context.GetCurrentViewPort();
float horizontal = viewPort.GetX();
float vertical = viewPort.GetY() + viewPort.GetHeight();
// flip coordinate space vertically and translate on the y axis with the viewport height
AffineTransform transform = AffineTransform.GetTranslateInstance(0, 0);
//Identity-transform
transform.Concatenate(AffineTransform.GetTranslateInstance(horizontal, vertical));
transform.Concatenate(new AffineTransform(1, 0, 0, -1, 0, 0));
return(transform);
}
// ---------------------------------------------------------------------------
/**
* Creates a PDF document.
*/
public byte[] CreatePdf()
{
// step 1
Rectangle rect = new Rectangle(-595, -842, 595, 842);
using (MemoryStream ms = new MemoryStream()) {
using (Document document = new Document(rect)) {
// step 2
PdfWriter writer = PdfWriter.GetInstance(document, ms);
// step 3
document.Open();
// step 4
PdfContentByte canvas = writer.DirectContent;
// draw coordinate system
canvas.MoveTo(-595, 0);
canvas.LineTo(595, 0);
canvas.MoveTo(0, -842);
canvas.LineTo(0, 842);
canvas.Stroke();
// read the PDF with the logo
PdfReader reader = new PdfReader(RESOURCE);
PdfTemplate template = writer.GetImportedPage(reader, 1);
// add it
canvas.SaveState();
canvas.AddTemplate(template, 0, 0);
AffineTransform af = new AffineTransform();
af.Translate(-595, 0);
af.Scale(0.5f, 0.5f);
canvas.Transform(af);
canvas.AddTemplate(template, 0, 0);
canvas.ConcatCTM(AffineTransform.GetTranslateInstance(595, 595));
canvas.AddTemplate(template, 0, 0);
canvas.RestoreState();
canvas.SaveState();
af = new AffineTransform(1f, 0f, 0.4f, 1f, -750f, -650f);
canvas.AddTemplate(template, af);
canvas.RestoreState();
canvas.SaveState();
af = new AffineTransform(0, -1, -1, 0, 650, 0);
canvas.AddTemplate(template, af);
af = new AffineTransform(0, -0.2f, -0.5f, 0, 350, 0);
canvas.AddTemplate(template, af);
canvas.RestoreState();
}
return(ms.ToArray());
}
}
public virtual void BuilderWithNoneSpreadingAndCanvasTransformTest()
{
AbstractLinearGradientBuilder gradientBuilder = new StrategyBasedLinearGradientBuilder().SetGradientDirectionAsStrategy
(StrategyBasedLinearGradientBuilder.GradientStrategy.TO_RIGHT).SetSpreadMethod(GradientSpreadMethod.NONE
).AddColorStop(new GradientColorStop(ColorConstants.RED.GetColorValue(), 0d, GradientColorStop.OffsetType
.RELATIVE)).AddColorStop(new GradientColorStop(ColorConstants.GREEN.GetColorValue(), 0.5, GradientColorStop.OffsetType
.RELATIVE)).AddColorStop(new GradientColorStop(ColorConstants.BLUE.GetColorValue(), 1d, GradientColorStop.OffsetType
.RELATIVE));
AffineTransform canvasTransform = AffineTransform.GetTranslateInstance(50, -50);
canvasTransform.Scale(0.8, 1.1);
canvasTransform.Rotate(Math.PI / 3, 400f, 550f);
GenerateAndComparePdfs("builderWithNoneSpreadingAndCanvasTransformTest.pdf", canvasTransform, gradientBuilder
);
}
/// <summary>
/// This method creates
/// <see cref="iText.Kernel.Geom.AffineTransform"/>
/// instance that could be used
/// to rotate content inside the occupied area. Be aware that it should be used only after
/// layout rendering is finished and correct occupied area for the rotated element is calculated.
/// </summary>
/// <returns>
///
/// <see cref="iText.Kernel.Geom.AffineTransform"/>
/// that rotates the content and places it inside occupied area.
/// </returns>
protected internal virtual AffineTransform CreateRotationTransformInsideOccupiedArea()
{
float? angle = this.GetProperty <float?>(Property.ROTATION_ANGLE);
AffineTransform rotationTransform = AffineTransform.GetRotateInstance((float)angle);
Rectangle contentBox = this.GetOccupiedAreaBBox();
IList <Point> rotatedContentBoxPoints = TransformPoints(RectangleToPointsList(contentBox), rotationTransform
);
// Occupied area for rotated elements is already calculated on layout in such way to enclose rotated content;
// therefore we can simply rotate content as is and then shift it to the occupied area.
float[] shift = CalculateShiftToPositionBBoxOfPointsAt(occupiedArea.GetBBox().GetLeft(), occupiedArea.GetBBox
().GetTop(), rotatedContentBoxPoints);
rotationTransform.PreConcatenate(AffineTransform.GetTranslateInstance(shift[0], shift[1]));
return(rotationTransform);
}
private static byte[] CreatePdfWithRotatedText(String text1, String text2, float rotation, bool moveTextToNextLine,
float moveTextDelta)
{
MemoryStream byteStream = new MemoryStream();
Document document = new Document();
PdfWriter writer = PdfWriter.GetInstance(document, byteStream);
document.SetPageSize(PageSize.LETTER);
document.Open();
PdfContentByte cb = writer.DirectContent;
BaseFont font = BaseFont.CreateFont();
float x = document.PageSize.Width / 2;
float y = document.PageSize.Height / 2;
cb.Transform(AffineTransform.GetTranslateInstance(x, y));
cb.MoveTo(-10, 0);
cb.LineTo(10, 0);
cb.MoveTo(0, -10);
cb.LineTo(0, 10);
cb.Stroke();
cb.BeginText();
cb.SetFontAndSize(font, 12);
cb.Transform(AffineTransform.GetRotateInstance(rotation / 180f * Math.PI));
cb.ShowText(text1);
if (moveTextToNextLine)
{
cb.MoveText(0, moveTextDelta);
}
else
{
cb.Transform(AffineTransform.GetTranslateInstance(moveTextDelta, 0));
}
cb.ShowText(text2);
cb.EndText();
document.Close();
byte[] pdfBytes = byteStream.ToArray();
return(pdfBytes);
}
private static AffineTransform GetTextTransform(float[][] absolutePositions, SvgDrawContext context)
{
AffineTransform tf = new AffineTransform();
//If x is not specified, but y is, we need to correct for preceding text.
if (absolutePositions[0] == null && absolutePositions[1] != null)
{
absolutePositions[0] = new float[] { context.GetTextMove()[0] };
}
//If y is not present, we can replace it with a neutral transformation (0.0f)
if (absolutePositions[1] == null)
{
absolutePositions[1] = new float[] { 0.0f };
}
tf.Concatenate(TEXTFLIP);
tf.Concatenate(AffineTransform.GetTranslateInstance(absolutePositions[0][0], -absolutePositions[1][0]));
return(tf);
}
private void AddLinearGradientITextAPIApproach(PdfDocument pdfDoc)
{
AbstractLinearGradientBuilder gradientBuilder = new StrategyBasedLinearGradientBuilder()
.SetGradientDirectionAsStrategy(StrategyBasedLinearGradientBuilder.GradientStrategy.TO_TOP_RIGHT)
.SetSpreadMethod(GradientSpreadMethod.PAD)
.AddColorStop(new GradientColorStop(ColorConstants.CYAN.GetColorValue()))
.AddColorStop(new GradientColorStop(ColorConstants.GREEN.GetColorValue()))
.AddColorStop(new GradientColorStop(new float[] { 1f, 0f, 0f }, 0.5f, GradientColorStop.OffsetType.RELATIVE));
AffineTransform canvasTransform = AffineTransform.GetTranslateInstance(50, -50);
canvasTransform.Scale(0.8, 1.1);
canvasTransform.Rotate(Math.PI / 3, 400f, 550f);
Rectangle rectangleToDraw = new Rectangle(50f, 450f, 500f, 300f);
GeneratePdf(pdfDoc, canvasTransform, gradientBuilder, rectangleToDraw);
}
protected void ManipulatePdf(String dest)
{
PdfDocument pdfDoc = new PdfDocument(new PdfReader(SRC), new PdfWriter(dest));
ImageData image = ImageDataFactory.Create(IMG);
// Translation defines the position of the image on the page and scale transformation sets image dimensions
// Please also note that image without scaling is drawn in 1x1 rectangle. And here we draw image on page using
// its original size in pixels.
AffineTransform affineTransform = AffineTransform.GetTranslateInstance(36, 300);
// Make sure that the image is visible by concatenating a scale transformation
affineTransform.Concatenate(AffineTransform.GetScaleInstance(image.GetWidth(), image.GetHeight()));
PdfCanvas canvas = new PdfCanvas(pdfDoc.GetFirstPage());
float[] matrix = new float[6];
affineTransform.GetMatrix(matrix);
canvas.AddImageWithTransformationMatrix(image, matrix[0], matrix[1], matrix[2], matrix[3], matrix[4], matrix[5]);
pdfDoc.Close();
}
public void BarcodeTest01()
{
String filename = "barcodeDataMatrix01.pdf";
String code = "AAAAAAAAAA;BBBBAAAA3;00028;BBBAA05;AAAA;AAAAAA;1234567;AQWXSZ;JEAN;;;;7894561;AQWXSZ;GEO;;;;1;1;1;1;0;0;1;0;1;0;0;0;1;0;1;0;0;0;0;0;0;1;1;1;1;1;1;1;1;1;1;1;1;1;1;1;1;1;1;1;1;1;1;1;1;1;1;1;1";
Document document = new Document(PageSize.A4);
PdfWriter writer = PdfWriter.GetInstance(document, new FileStream(outFolder + filename, FileMode.Create));
document.Open();
document.Add(new Paragraph("Datamatrix test 01"));
PdfContentByte cb = writer.DirectContent;
cb.ConcatCTM(AffineTransform.GetTranslateInstance(PageSize.A4.Width / 2 - 100, PageSize.A4.Height / 2 - 100));
BarcodeDatamatrix barcode = new BarcodeDatamatrix();
barcode.Generate(code);
barcode.PlaceBarcode(cb, BaseColor.GREEN, 5, 5);
document.Close();
CompareDocuments(filename);
}
private AffineTransform CreateTransform(PdfImportedPage page, int rotation, Rectangle initialPageSize, bool autoResize)
{
var docWidth = _docContent.Right - _docContent.Left;
var docHeight = _docContent.Top - _docContent.Bottom;
AffineTransform rotate = AffineTransform.GetRotateInstance((Math.PI * (360 - rotation)) / 180, 0, 0);
AffineTransform scale = AffineTransform.GetScaleInstance(docWidth / page.Width, docHeight / page.Height);
AffineTransform translateMargin = AffineTransform.GetTranslateInstance(_docContent.LeftMargin - page.BoundingBox.Left + initialPageSize.Left,
_docContent.BottomMargin - page.BoundingBox.Bottom + initialPageSize.Bottom);
AffineTransform translateRotate = AffineTransform.GetTranslateInstance(0, 0);
if (rotation % 180 == 90)
{
scale = AffineTransform.GetScaleInstance(docWidth / page.Height, docHeight / page.Width);
translateRotate = AffineTransform.GetTranslateInstance((rotation % 360 == 270) ? page.Height : 0,
(rotation % 360 == 90) ? page.Width : 0);
}
else if (rotation % 360 == 180)
{
translateRotate = AffineTransform.GetTranslateInstance(page.Width, page.Height);;
}
AffineTransform transform = AffineTransform.GetTranslateInstance(0, 0);
if (autoResize)
{
transform.preConcatenate(translateMargin);
}
transform.preConcatenate(rotate);
transform.preConcatenate(translateRotate);
if (autoResize)
{
transform.preConcatenate(scale);
}
return(transform);
}
public void BarcodeTest02()
{
String filename = "barcodeDataMatrix02.pdf";
String code = "дима";
String encoding = "UTF-8";
Document document = new Document(PageSize.A4);
PdfWriter writer = PdfWriter.GetInstance(document, new FileStream(outFolder + filename, FileMode.Create));
document.Open();
document.Add(new Paragraph("Datamatrix test 02"));
PdfContentByte cb = writer.DirectContent;
cb.ConcatCTM(AffineTransform.GetTranslateInstance(PageSize.A4.Width / 2 - 100, PageSize.A4.Height / 2 - 100));
BarcodeDatamatrix barcode = new BarcodeDatamatrix();
barcode.Generate(code, encoding);
barcode.PlaceBarcode(cb, BaseColor.GREEN, 5, 5);
document.Close();
CompareDocuments(filename);
}
public void BarcodeTest04()
{
String filename = "barcodeDataMatrix04.pdf";
String code = "01AbcdefgAbcdefg123451231231234";
Document document = new Document(PageSize.A4);
PdfWriter writer = PdfWriter.GetInstance(document, new FileStream(outFolder + filename, FileMode.Create));
document.Open();
document.Add(new Paragraph("Datamatrix test 04"));
PdfContentByte cb = writer.DirectContent;
cb.ConcatCTM(AffineTransform.GetTranslateInstance(PageSize.A4.Width / 2 - 100, PageSize.A4.Height / 2 - 100));
BarcodeDatamatrix barcode = new BarcodeDatamatrix();
barcode.Width = 36;
barcode.Height = 12;
barcode.Generate(code);
barcode.PlaceBarcode(cb, BaseColor.BLACK, 5, 5);
document.Close();
CompareDocuments(filename);
}
protected internal override void DoDraw(SvgDrawContext context)
{
if (this.attributesAndStyles != null)
{
String elementToReUse = this.attributesAndStyles.Get(SvgConstants.Attributes.XLINK_HREF);
if (elementToReUse == null)
{
elementToReUse = this.attributesAndStyles.Get(SvgConstants.Attributes.HREF);
}
if (elementToReUse != null && !String.IsNullOrEmpty(elementToReUse) && IsValidHref(elementToReUse))
{
String normalizedName = SvgTextUtil.FilterReferenceValue(elementToReUse);
if (!context.IsIdUsedByUseTagBefore(normalizedName))
{
ISvgNodeRenderer template = context.GetNamedObject(normalizedName);
//Clone template
ISvgNodeRenderer namedObject = template == null ? null : template.CreateDeepCopy();
//Resolve parent inheritance
SvgNodeRendererInheritanceResolver iresolver = new SvgNodeRendererInheritanceResolver();
iresolver.ApplyInheritanceToSubTree(this, namedObject);
if (namedObject != null)
{
if (namedObject is AbstractSvgNodeRenderer)
{
((AbstractSvgNodeRenderer)namedObject).SetPartOfClipPath(partOfClipPath);
}
PdfCanvas currentCanvas = context.GetCurrentCanvas();
float x = 0f;
float y = 0f;
if (this.attributesAndStyles.ContainsKey(SvgConstants.Attributes.X))
{
x = CssUtils.ParseAbsoluteLength(this.attributesAndStyles.Get(SvgConstants.Attributes.X));
}
if (this.attributesAndStyles.ContainsKey(SvgConstants.Attributes.Y))
{
y = CssUtils.ParseAbsoluteLength(this.attributesAndStyles.Get(SvgConstants.Attributes.Y));
}
AffineTransform inverseMatrix = null;
if (!CssUtils.CompareFloats(x, 0) || !CssUtils.CompareFloats(y, 0))
{
AffineTransform translation = AffineTransform.GetTranslateInstance(x, y);
currentCanvas.ConcatMatrix(translation);
if (partOfClipPath)
{
try {
inverseMatrix = translation.CreateInverse();
}
catch (NoninvertibleTransformException ex) {
LogManager.GetLogger(typeof(UseSvgNodeRenderer)).Warn(SvgLogMessageConstant.NONINVERTIBLE_TRANSFORMATION_MATRIX_USED_IN_CLIP_PATH
, ex);
}
}
}
// setting the parent of the referenced element to this instance
namedObject.SetParent(this);
namedObject.Draw(context);
// unsetting the parent of the referenced element
namedObject.SetParent(null);
if (inverseMatrix != null)
{
currentCanvas.ConcatMatrix(inverseMatrix);
}
}
}
}
}
}
){kind=link}
){kind=link}
){kind=link}
){kind=link}
){kind=link}
){kind=link}