/// <summary>
/// Create PDF pages from given HTML and appends them to the provided PDF document.<br/>
/// </summary>
/// <param name="document">PDF document to append pages to</param>
/// <param name="html">HTML source to create PDF from</param>
/// <param name="config">the configuration to use for the PDF generation (page size/page orientation/margins/etc.)</param>
/// <param name="cssData">optional: the style to use for html rendering (default - use W3 default style)</param>
/// <param name="stylesheetLoad">optional: can be used to overwrite stylesheet resolution logic</param>
/// <param name="imageLoad">optional: can be used to overwrite image resolution logic</param>
/// <returns>the generated image of the html</returns>
public static void AddPdfPages(PdfDocument document, string html, PdfGenerateConfig config, CssData cssData = null, EventHandler<HtmlStylesheetLoadEventArgs> stylesheetLoad = null, EventHandler<HtmlImageLoadEventArgs> imageLoad = null)
{
XSize orgPageSize;
// get the size of each page to layout the HTML in
if (config.PageSize != PageSize.Undefined)
orgPageSize = PageSizeConverter.ToSize(config.PageSize);
else
orgPageSize = config.ManualPageSize;
if (config.PageOrientation == PageOrientation.Landscape)
{
// invert pagesize for landscape
orgPageSize = new XSize(orgPageSize.Height, orgPageSize.Width);
}
var pageSize = new XSize(orgPageSize.Width - config.MarginLeft - config.MarginRight, orgPageSize.Height - config.MarginTop - config.MarginBottom);
if (!string.IsNullOrEmpty(html))
{
using (var container = new HtmlContainer())
{
if (stylesheetLoad != null)
container.StylesheetLoad += stylesheetLoad;
if (imageLoad != null)
container.ImageLoad += imageLoad;
container.Location = new XPoint(config.MarginLeft, config.MarginTop);
container.MaxSize = new XSize(pageSize.Width, 0);
container.SetHtml(html, cssData);
container.PageSize = pageSize;
container.MarginBottom = config.MarginBottom;
container.MarginLeft = config.MarginLeft;
container.MarginRight = config.MarginRight;
container.MarginTop = config.MarginTop;
// layout the HTML with the page width restriction to know how many pages are required
using (var measure = XGraphics.CreateMeasureContext(pageSize, XGraphicsUnit.Point, XPageDirection.Downwards))
{
container.PerformLayout(measure);
}
// while there is un-rendered HTML, create another PDF page and render with proper offset for the next page
double scrollOffset = 0;
while (scrollOffset > -container.ActualSize.Height)
{
var page = document.AddPage();
page.Height = orgPageSize.Height;
page.Width = orgPageSize.Width;
using (var g = XGraphics.FromPdfPage(page))
{
//g.IntersectClip(new XRect(config.MarginLeft, config.MarginTop, pageSize.Width, pageSize.Height));
g.IntersectClip(new XRect(0, 0, page.Width, page.Height));
container.ScrollOffset = new XPoint(0, scrollOffset);
container.PerformPaint(g);
}
scrollOffset -= pageSize.Height;
}
// add web links and anchors
HandleLinks(document, container, orgPageSize, pageSize);
}
}
}
public override void RenderPage(XGraphics gfx)
{
base.RenderPage(gfx);
DrawGridlines(gfx);
// Create a new graphical path
XGraphicsPath path = new XGraphicsPath();
XSize size = new XSize(90, 140);
double rotationAngle = 130;
path.AddArc(new XPoint(100, 100), new XPoint(200, 200), size, rotationAngle, false, System.Windows.Media.SweepDirection.Clockwise);
path.StartFigure();
path.AddArc(new XPoint(400, 100), new XPoint(500, 200), size, rotationAngle, false, System.Windows.Media.SweepDirection.Counterclockwise);
path.StartFigure();
path.AddArc(new XPoint(100, 300), new XPoint(200, 400), size, rotationAngle, true, System.Windows.Media.SweepDirection.Clockwise);
path.StartFigure();
path.AddArc(new XPoint(400, 300), new XPoint(500, 400), size, rotationAngle, true, System.Windows.Media.SweepDirection.Counterclockwise);
path.StartFigure();
#if DEBUG_
gfx.WriteComment("PathArcSegment");
#endif
gfx.DrawPath(XPens.Red, path);
}
// ...took a look at the source code of WPF. About 50 classes and several 10,000 lines of code
// deal with that what colloquial is called 'fonts'.
// So let's start simple.
/// <summary>
/// Simple measure string function.
/// </summary>
public static XSize MeasureString(string text, XFont font, XStringFormat stringFormat)
{
XSize size = new XSize();
OpenTypeDescriptor descriptor = FontDescriptorStock.Global.CreateDescriptor(font) as OpenTypeDescriptor;
if (descriptor != null)
{
size.Height = (descriptor.Ascender + Math.Abs(descriptor.Descender)) * font.Size / font.unitsPerEm;
Debug.Assert(descriptor.Ascender > 0);
bool symbol = descriptor.fontData.cmap.symbol;
int length = text.Length;
int width = 0;
for (int idx = 0; idx < length; idx++)
{
char ch = text[idx];
int glyphIndex = 0;
if (symbol)
{
glyphIndex = ch + (descriptor.fontData.os2.usFirstCharIndex & 0xFF00); // @@@
glyphIndex = descriptor.CharCodeToGlyphIndex((char)glyphIndex);
}
else
glyphIndex = descriptor.CharCodeToGlyphIndex(ch);
//double width = descriptor.GlyphIndexToEmfWidth(glyphIndex, font.Size);
//size.Width += width;
width += descriptor.GlyphIndexToWidth(glyphIndex);
}
size.Width = width * font.Size * (font.Italic ? 1 : 1) / descriptor.UnitsPerEm;
}
Debug.Assert(descriptor != null, "No OpenTypeDescriptor.");
return size;
}
/// <summary>
/// Initializes a new instance of the <see cref="BarCode"/> class.
/// </summary>
/// <param name="text"></param>
/// <param name="size"></param>
/// <param name="direction"></param>
public BarCode(string text, XSize size, CodeDirection direction)
: base(text, size, direction)
{
this.text = text;
this.size = size;
this.direction = direction;
}
/// <summary>
/// Initializes a new instance of the XGraphics class.
/// </summary>
/// <param name="gfx">The GFX.</param>
/// <param name="size">The size.</param>
/// <param name="pageUnit">The page unit.</param>
/// <param name="pageDirection">The page direction.</param>
XGraphics(Graphics gfx, XSize size, XGraphicsUnit pageUnit, XPageDirection pageDirection)
{
if (gfx == null)
throw new ArgumentNullException("gfx");
this.gfx = gfx;
this.drawGraphics = true;
this.pageSize = new XSize(size.width, size.height);
this.pageUnit = pageUnit;
switch (pageUnit)
{
case XGraphicsUnit.Point:
this.pageSizePoints = new XSize(size.width, size.height);
break;
case XGraphicsUnit.Inch:
this.pageSizePoints = new XSize(XUnit.FromInch(size.width), XUnit.FromInch(size.height));
break;
case XGraphicsUnit.Millimeter:
this.pageSizePoints = new XSize(XUnit.FromMillimeter(size.width), XUnit.FromMillimeter(size.height));
break;
case XGraphicsUnit.Centimeter:
this.pageSizePoints = new XSize(XUnit.FromCentimeter(size.width), XUnit.FromCentimeter(size.height));
break;
default:
throw new NotImplementedException("unit");
}
this.pageDirection = pageDirection;
Initialize();
}
/// <summary>
/// Calculates the space used for the X axis.
/// </summary>
internal override void Format()
{
AxisRendererInfo xari = ((ChartRendererInfo)this.rendererParms.RendererInfo).xAxisRendererInfo;
if (xari.axis != null)
{
AxisTitleRendererInfo atri = xari.axisTitleRendererInfo;
// Calculate space used for axis title.
XSize titleSize = new XSize(0, 0);
if (atri != null && atri.AxisTitleText != null && atri.AxisTitleText.Length > 0)
titleSize = this.rendererParms.Graphics.MeasureString(atri.AxisTitleText, atri.AxisTitleFont);
// Calculate space used for tick labels.
XSize size = new XSize(0, 0);
foreach (XSeries xs in xari.XValues)
{
foreach (XValue xv in xs)
{
XSize valueSize = this.rendererParms.Graphics.MeasureString(xv.Value, xari.TickLabelsFont);
size.Height += valueSize.Height;
size.Width = Math.Max(valueSize.Width, size.Width);
}
}
// Remember space for later drawing.
if (atri != null)
atri.AxisTitleSize = titleSize;
xari.TickLabelsHeight = size.Height;
xari.Height = size.Height;
xari.Width = titleSize.Width + size.Width + xari.MajorTickMarkWidth;
}
}
/// <summary>
/// Initializes a new instance of the XRect class.
/// </summary>
public XRect(XPoint location, XSize size)
{
this.x = location.X;
this.y = location.Y;
this.width = size.Width;
this.height = size.Height;
}
private void plpage_Paint(object sender, PaintEventArgs e)
{
if (m_source != null)
{
float zoom = zoomControl1.Zoom * m_zoomFactor;
GraphicsState state = e.Graphics.Save();
e.Graphics.ScaleTransform(zoom, zoom);
XSize size = new XSize(plpage.Width * zoom, plpage.Height * zoom);
m_source.DrawPage(XGraphics.FromGraphics(e.Graphics, size), tbpage.Value);
e.Graphics.Restore(state);
}
}
/// <summary>
/// Initializes a new instance of the XRect class.
/// </summary>
public XRect(XPoint location, XSize size)
{
if (size.IsEmpty)
{
this = s_empty;
}
else
{
_x = location.X;
_y = location.Y;
_width = size.Width;
_height = size.Height;
}
}
/// <summary>
/// Initializes a new instance of the XRect class.
/// </summary>
public XRect(XPoint location, XSize size)
{
if (size.IsEmpty)
{
this = s_empty;
}
else
{
this.x = location.x;
this.y = location.y;
this.width = size.width;
this.height = size.height;
}
}
/// <summary>
/// Creates a bar code from the specified code type.
/// </summary>
public static BarCode FromType(CodeType type, string text, XSize size, CodeDirection direction)
{
switch (type)
{
case CodeType.Code2of5Interleaved:
return new Code2of5Interleaved(text, size, direction);
case CodeType.Code3of9Standard:
return new Code3of9Standard(text, size, direction);
default:
throw new InvalidEnumArgumentException("type", (int)type, typeof(CodeType));
}
}
public void AddArc(XPoint point1, XPoint point2, XSize size, double rotationAngle, bool isLargeArg, XSweepDirection sweepDirection)
{
List <XPoint> points = GeometryHelper.BezierCurveFromArc(point1, point2, size, rotationAngle, isLargeArg,
sweepDirection == XSweepDirection.Clockwise, PathStart.MoveTo1st);
int count = points.Count;
Debug.Assert((count + 2) % 3 == 0);
MoveOrLineTo(points[0].X, points[0].Y);
for (int idx = 1; idx < count; idx += 3)
{
BezierTo(points[idx].X, points[idx].Y, points[idx + 1].X, points[idx + 1].Y, points[idx + 2].X, points[idx + 2].Y, false);
}
}
/// <summary>
/// Calculates the space used for the Y axis.
/// </summary>
internal override void Format()
{
AxisRendererInfo yari = ((ChartRendererInfo)this.rendererParms.RendererInfo).yAxisRendererInfo;
if (yari.axis != null)
{
XGraphics gfx = this.rendererParms.Graphics;
XSize size = new XSize(0, 0);
// height of all ticklabels
double yMin = yari.MinimumScale;
double yMax = yari.MaximumScale;
double yMajorTick = yari.MajorTick;
double lineHeight = Double.MinValue;
XSize labelSize = new XSize(0, 0);
for (double y = yMin; y <= yMax; y += yMajorTick)
{
string str = y.ToString(yari.TickLabelsFormat);
labelSize = gfx.MeasureString(str, yari.TickLabelsFont);
size.Height += labelSize.Height;
size.Width = Math.Max(size.Width, labelSize.Width);
lineHeight = Math.Max(lineHeight, labelSize.Height);
}
// add space for tickmarks
size.Width += yari.MajorTickMarkWidth * 1.5;
// Measure axis title
XSize titleSize = new XSize(0, 0);
if (yari.axisTitleRendererInfo != null)
{
RendererParameters parms = new RendererParameters();
parms.Graphics = gfx;
parms.RendererInfo = yari;
AxisTitleRenderer atr = new AxisTitleRenderer(parms);
atr.Format();
titleSize.Height = yari.axisTitleRendererInfo.Height;
titleSize.Width = yari.axisTitleRendererInfo.Width;
}
yari.Height = Math.Max(size.Height, titleSize.Height);
yari.Width = size.Width + titleSize.Width;
yari.InnerRect = yari.Rect;
yari.InnerRect.Y += yari.TickLabelsFont.Height / 2;
yari.LabelSize = labelSize;
}
}
/// <summary>
/// Measure string directly from font data.
/// </summary>
public static XSize MeasureString(string text, XFont font, XStringFormat stringFormat_notyetused)
{
XSize size = new XSize();
OpenTypeDescriptor descriptor = FontDescriptorCache.GetOrCreateDescriptorFor(font) as OpenTypeDescriptor;
if (descriptor != null)
{
// Height is the sum of ascender and descender.
size.Height = (descriptor.Ascender + descriptor.Descender) * font.Size / font.UnitsPerEm;
Debug.Assert(descriptor.Ascender > 0);
bool symbol = descriptor.FontFace.cmap.symbol;
int length = text.Length;
int width = 0;
for (int idx = 0; idx < length; idx++)
{
char ch = text[idx];
// HACK: Unclear what to do here.
if (ch < 32)
{
continue;
}
if (symbol)
{
// Remap ch for symbol fonts.
ch = (char)(ch | (descriptor.FontFace.os2.usFirstCharIndex & 0xFF00)); // @@@ refactor
// Used | instead of + because of: http://PdfSharp.codeplex.com/workitem/15954
}
int glyphIndex = descriptor.CharCodeToGlyphIndex(ch);
width += descriptor.GlyphIndexToWidth(glyphIndex);
}
// What? size.Width = width * font.Size * (font.Italic ? 1 : 1) / descriptor.UnitsPerEm;
size.Width = width * font.Size / descriptor.UnitsPerEm;
// Adjust bold simulation.
if ((font.GlyphTypeface.StyleSimulations & XStyleSimulations.BoldSimulation) == XStyleSimulations.BoldSimulation ||
DoApplyBoldHack(font.FamilyName)) //BOLD hacks for helvetica
{
// Add 2% of the em-size for each character.
// Unsure how to deal with white space. Currently count as regular character.
size.Width += length * font.Size * Const.BoldEmphasis;
}
}
Debug.Assert(descriptor != null, "No OpenTypeDescriptor.");
return(size);
}
/// <summary>
/// Layouts and calculates the space used by the legend.
/// </summary>
internal override void Format()
{
ChartRendererInfo cri = (ChartRendererInfo)this.rendererParms.RendererInfo;
LegendRendererInfo lri = cri.legendRendererInfo;
if (lri == null)
return;
RendererParameters parms = new RendererParameters();
parms.Graphics = this.rendererParms.Graphics;
bool verticalLegend = (lri.legend.docking == DockingType.Left || lri.legend.docking == DockingType.Right);
XSize maxMarkerArea = new XSize();
LegendEntryRenderer ler = new LegendEntryRenderer(parms);
foreach (LegendEntryRendererInfo leri in lri.Entries)
{
parms.RendererInfo = leri;
ler.Format();
maxMarkerArea.Width = Math.Max(leri.MarkerArea.Width, maxMarkerArea.Width);
maxMarkerArea.Height = Math.Max(leri.MarkerArea.Height, maxMarkerArea.Height);
if (verticalLegend)
{
lri.Width = Math.Max(lri.Width, leri.Width);
lri.Height += leri.Height;
}
else
{
lri.Width += leri.Width;
lri.Height = Math.Max(lri.Height, leri.Height);
}
}
// Add padding to left, right, top and bottom
int paddingFactor = 1;
if (lri.BorderPen != null)
paddingFactor = 2;
lri.Width += (LegendRenderer.LeftPadding + LegendRenderer.RightPadding) * paddingFactor;
lri.Height += (LegendRenderer.TopPadding + LegendRenderer.BottomPadding) * paddingFactor;
if (verticalLegend)
lri.Height += LegendRenderer.EntrySpacing * (lri.Entries.Length - 1);
else
lri.Width += LegendRenderer.EntrySpacing * (lri.Entries.Length - 1);
foreach (LegendEntryRendererInfo leri in lri.Entries)
leri.MarkerArea = maxMarkerArea;
}
/// <summary>
/// Initializes a new instance of the <see cref="XForm"/> class that represents a page of a PDF document.
/// </summary>
/// <param name="document">The PDF document.</param>
/// <param name="size">The size of the page.</param>
public XForm(PdfDocument document, XSize size)
: this(document, new XRect(0, 0, size.Width, size.Height))
{
////if (size.width < 1 || size.height < 1)
//// throw new ArgumentNullException("size", "The size of the XPdfForm is to small.");
////// I must tie the XPdfForm to a document immediately, because otherwise I would have no place where
////// to store the resources.
////if (document == null)
//// throw new ArgumentNullException("document", "An XPdfForm template must be associated with a document.");
////_formState = FormState.Created;
////_document = document;
////pdfForm = new PdfFormXObject(document, this);
////templateSize = size;
////PdfRectangle rect = new PdfRectangle(new XPoint(), size);
////pdfForm.Elements.SetRectangle(PdfFormXObject.Keys.BBox, rect);
}
/// <summary>
/// Parses the size from a string.
/// </summary>
public static XSize Parse(string source)
{
XSize empty;
CultureInfo cultureInfo = CultureInfo.InvariantCulture;
TokenizerHelper helper = new TokenizerHelper(source, cultureInfo);
string str = helper.NextTokenRequired();
if (str == "Empty")
{
empty = Empty;
}
else
{
empty = new XSize(Convert.ToDouble(str, cultureInfo), Convert.ToDouble(helper.NextTokenRequired(), cultureInfo));
}
helper.LastTokenRequired();
return(empty);
}
/// <summary>
/// Measure string directly from font data.
/// </summary>
public static XSize MeasureString(string text, XFont font, XStringFormat stringFormat)
{
XSize size = new XSize();
OpenTypeDescriptor descriptor = FontDescriptorCache.GetOrCreateDescriptorFor(font) as OpenTypeDescriptor;
if (descriptor != null)
{
// Height is the sum of ascender and descender.
size.Height = (descriptor.Ascender + descriptor.Descender) * font.Size / font.UnitsPerEm;
Debug.Assert(descriptor.Ascender > 0);
bool symbol = descriptor.FontFace.cmap.symbol;
int length = text.Length;
int width = 0;
for (int idx = 0; idx < length; idx++)
{
char ch = text[idx];
// HACK: Unclear what to do here.
if (ch < 32)
continue;
if (symbol)
{
// Remap ch for symbol fonts.
ch = (char)(ch | (descriptor.FontFace.os2.usFirstCharIndex & 0xFF00)); // @@@ refactor
// Used | instead of + because of: http://pdfsharp.codeplex.com/workitem/15954
}
int glyphIndex = descriptor.CharCodeToGlyphIndex(ch);
width += descriptor.GlyphIndexToWidth(glyphIndex);
}
// What? size.Width = width * font.Size * (font.Italic ? 1 : 1) / descriptor.UnitsPerEm;
size.Width = width * font.Size / descriptor.UnitsPerEm;
// Adjust bold simulation.
if ((font.GlyphTypeface.StyleSimulations & XStyleSimulations.BoldSimulation) == XStyleSimulations.BoldSimulation)
{
// Add 2% of the em-size for each character.
// Unsure how to deal with white space. Currently count as regular character.
size.Width += length * font.Size * Const.BoldEmphasis;
}
}
Debug.Assert(descriptor != null, "No OpenTypeDescriptor.");
return size;
}
/// <summary>
/// Initializes a new instance of the XGraphics class.
/// </summary>
/// <param name="gfx">The gfx.</param>
/// <param name="size">The size.</param>
/// <param name="pageUnit">The page unit.</param>
/// <param name="pageDirection">The page direction.</param>
XGraphics(Graphics gfx, XSize size, XGraphicsUnit pageUnit, XPageDirection pageDirection)
{
if (gfx == null)
{
//throw new ArgumentNullException("gfx");
gfx = Graphics.FromHwnd(IntPtr.Zero);
}
this.gsStack = new GraphicsStateStack(this);
this.targetContext = XGraphicTargetContext.GDI;
this.gfx = gfx;
this.drawGraphics = true;
this.pageSize = new XSize(size.width, size.height);
this.pageUnit = pageUnit;
switch (pageUnit)
{
case XGraphicsUnit.Point:
this.pageSizePoints = new XSize(size.width, size.height);
break;
case XGraphicsUnit.Inch:
this.pageSizePoints = new XSize(XUnit.FromInch(size.width), XUnit.FromInch(size.height));
break;
case XGraphicsUnit.Millimeter:
this.pageSizePoints = new XSize(XUnit.FromMillimeter(size.width), XUnit.FromMillimeter(size.height));
break;
case XGraphicsUnit.Centimeter:
this.pageSizePoints = new XSize(XUnit.FromCentimeter(size.width), XUnit.FromCentimeter(size.height));
break;
case XGraphicsUnit.Presentation:
this.pageSizePoints = new XSize(XUnit.FromPresentation(size.width), XUnit.FromPresentation(size.height));
break;
default:
throw new NotImplementedException("unit");
}
this.pageDirection = pageDirection;
Initialize();
}
/// <summary>
/// Initializes a new instance of the <see cref="MatrixCode"/> class.
/// </summary>
public MatrixCode(string text, string encoding, int rows, int columns, XSize size)
: base(text, size, CodeDirection.LeftToRight)
{
this.encoding = encoding;
if (this.encoding == "" || this.encoding == null)
this.encoding = new String('a', this.text.Length);
if (columns < rows)
{
this.rows = columns;
this.columns = rows;
}
else
{
this.columns = columns;
this.rows = rows;
}
this.Text = text;
}
/// <summary>
/// Calculates the space used for the X axis.
/// </summary>
internal override void Format()
{
AxisRendererInfo xari = ((ChartRendererInfo)_rendererParms.RendererInfo).xAxisRendererInfo;
if (xari._axis != null)
{
AxisTitleRendererInfo atri = xari._axisTitleRendererInfo;
// Calculate space used for axis title.
XSize titleSize = new XSize(0, 0);
if (atri != null && atri.AxisTitleText != null && atri.AxisTitleText.Length > 0)
{
titleSize = _rendererParms.Graphics.MeasureString(atri.AxisTitleText, atri.AxisTitleFont);
atri.AxisTitleSize = titleSize;
}
// Calculate space used for tick labels.
XSize size = new XSize(0, 0);
if (xari.XValues.Count > 0)
{
XSeries xs = xari.XValues[0];
foreach (XValue xv in xs)
{
if (xv != null)
{
string tickLabel = xv._value;
XSize valueSize = _rendererParms.Graphics.MeasureString(tickLabel, xari.TickLabelsFont);
size.Height = Math.Max(valueSize.Height, size.Height);
size.Width += valueSize.Width;
}
}
}
// Remember space for later drawing.
xari.TickLabelsHeight = size.Height;
xari.Height = titleSize.Height + size.Height + xari.MajorTickMarkWidth;
xari.Width = Math.Max(titleSize.Width, size.Width);
}
}
/// <summary>
/// Adds an elliptical arc to the current figure. The arc is specified WPF like.
/// </summary>
public void AddArc(XPoint point1, XPoint point2, XSize size, double rotationAngle, bool isLargeArg, XSweepDirection sweepDirection)
{
_corePath.AddArc(point1, point2, size, rotationAngle, isLargeArg, sweepDirection);
}
/// <summary>
/// Expands the rectangle by using the specified Size, in all directions.
/// </summary>
public void Inflate(XSize size)
{
Inflate(size.width, size.height);
}
/// <summary>
/// Indicates whether this tow instance are equal.
/// </summary>
public static bool Equals(XSize size1, XSize size2)
{
if (size1.IsEmpty)
return size2.IsEmpty;
return size1.Width.Equals(size2.Width) && size1.Height.Equals(size2.Height);
}
private static XSize CreateEmptySize()
{
XSize size = new XSize();
size.width = double.NegativeInfinity;
size.height = double.NegativeInfinity;
return size;
}
static XSize()
{
s_empty = CreateEmptySize();
}
/// <summary>
/// Indicates whether this instance and a specified size are equal.
/// </summary>
public bool Equals(XSize value)
{
return(Equals(this, value));
}
/// <summary>
/// Indicates whether the values are so close that they can be considered as equal.
/// </summary>
public static bool AreClose(XSize size1, XSize size2)
{
return AreClose(size1.Width, size2.Width) && AreClose(size1.Height, size2.Height);
}
/// <summary>
/// Expands the rectangle by using the specified Size, in all directions.
/// </summary>
public void Inflate(XSize size)
{
Inflate(size.Width, size.Height);
}
public static PDF.XGraphicsPath ToXGraphicsPath(this IPathGeometry pg, Func <double, double> scale)
{
var gp = new PDF.XGraphicsPath()
{
FillMode = pg.FillRule == FillRule.EvenOdd ? PDF.XFillMode.Alternate : PDF.XFillMode.Winding
};
foreach (var pf in pg.Figures)
{
var startPoint = pf.StartPoint;
foreach (var segment in pf.Segments)
{
if (segment is IArcSegment arcSegment)
{
#if WPF
var point1 = new PDF.XPoint(
scale(startPoint.X),
scale(startPoint.Y));
var point2 = new PDF.XPoint(
scale(arcSegment.Point.X),
scale(arcSegment.Point.Y));
var size = new PDF.XSize(
scale(arcSegment.Size.Width),
scale(arcSegment.Size.Height));
gp.AddArc(
point1,
point2,
size, arcSegment.RotationAngle, arcSegment.IsLargeArc,
arcSegment.SweepDirection == SweepDirection.Clockwise ? PDF.XSweepDirection.Clockwise : PDF.XSweepDirection.Counterclockwise);
startPoint = arcSegment.Point;
#else
// TODO: Convert WPF/SVG elliptical arc segment format to GDI+ bezier curves.
startPoint = arcSegment.Point;
#endif
}
else if (segment is ICubicBezierSegment cubicBezierSegment)
{
gp.AddBezier(
scale(startPoint.X),
scale(startPoint.Y),
scale(cubicBezierSegment.Point1.X),
scale(cubicBezierSegment.Point1.Y),
scale(cubicBezierSegment.Point2.X),
scale(cubicBezierSegment.Point2.Y),
scale(cubicBezierSegment.Point3.X),
scale(cubicBezierSegment.Point3.Y));
startPoint = cubicBezierSegment.Point3;
}
else if (segment is ILineSegment)
{
var lineSegment = segment as ILineSegment;
gp.AddLine(
scale(startPoint.X),
scale(startPoint.Y),
scale(lineSegment.Point.X),
scale(lineSegment.Point.Y));
startPoint = lineSegment.Point;
}
else if (segment is IQuadraticBezierSegment quadraticBezierSegment)
{
var p1 = startPoint;
var p2 = quadraticBezierSegment.Point1;
var p3 = quadraticBezierSegment.Point2;
double x1 = p1.X;
double y1 = p1.Y;
double x2 = p1.X + (2.0 * (p2.X - p1.X)) / 3.0;
double y2 = p1.Y + (2.0 * (p2.Y - p1.Y)) / 3.0;
double x3 = x2 + (p3.X - p1.X) / 3.0;
double y3 = y2 + (p3.Y - p1.Y) / 3.0;
double x4 = p3.X;
double y4 = p3.Y;
gp.AddBezier(
scale(x1),
scale(y1),
scale(x2),
scale(y2),
scale(x3),
scale(y3),
scale(x4),
scale(y4));
startPoint = quadraticBezierSegment.Point2;
}
else
{
throw new NotSupportedException("Not supported segment type: " + segment.GetType());
}
}
if (pf.IsClosed)
{
gp.CloseFigure();
}
else
{
gp.StartFigure();
}
}
return(gp);
}
/// <summary>
/// Initializes a new instance of the <see cref="ThickThinBarCode"/> class.
/// </summary>
public ThickThinBarCode(string code, XSize size, CodeDirection direction)
: base(code, size, direction)
{
}
/// <summary>
/// Creates the measure context. This is a graphics context created only for querying measures of text.
/// Drawing on a measure context has no effect.
/// </summary>
public static XGraphics CreateMeasureContext(XSize size, XGraphicsUnit pageUnit, XPageDirection pageDirection)
{
XGraphics gfx = null;
#if GDI
gfx = new XGraphics((System.Drawing.Graphics)null, size, pageUnit, pageDirection);
#endif
#if WPF && !SILVERLIGHT
gfx = new XGraphics((System.Windows.Media.DrawingContext)null, size, pageUnit, pageDirection);
#endif
#if SILVERLIGHT
gfx = new XGraphics(new Canvas(), size, pageUnit, pageDirection);
#endif
return gfx;
}
/// <summary>
/// Draws the vertical Y axis.
/// </summary>
internal override void Draw()
{
AxisRendererInfo yari = ((ChartRendererInfo)this.rendererParms.RendererInfo).yAxisRendererInfo;
double yMin = yari.MinimumScale;
double yMax = yari.MaximumScale;
double yMajorTick = yari.MajorTick;
double yMinorTick = yari.MinorTick;
XMatrix matrix = XMatrix.Identity;
matrix.TranslatePrepend(-yari.InnerRect.X, yMax);
matrix.Scale(1, yari.InnerRect.Height / (yMax - yMin), XMatrixOrder.Append);
matrix.ScalePrepend(1, -1); // mirror horizontal
matrix.Translate(yari.InnerRect.X, yari.InnerRect.Y, XMatrixOrder.Append);
// Draw axis.
// First draw tick marks, second draw axis.
double majorTickMarkStart = 0, majorTickMarkEnd = 0,
minorTickMarkStart = 0, minorTickMarkEnd = 0;
GetTickMarkPos(yari, ref majorTickMarkStart, ref majorTickMarkEnd, ref minorTickMarkStart, ref minorTickMarkEnd);
XGraphics gfx = this.rendererParms.Graphics;
LineFormatRenderer lineFormatRenderer = new LineFormatRenderer(gfx, yari.LineFormat);
LineFormatRenderer minorTickMarkLineFormat = new LineFormatRenderer(gfx, yari.MinorTickMarkLineFormat);
LineFormatRenderer majorTickMarkLineFormat = new LineFormatRenderer(gfx, yari.MajorTickMarkLineFormat);
XPoint[] points = new XPoint[2];
// Draw minor tick marks.
if (yari.MinorTickMark != TickMarkType.None)
{
for (double y = yMin + yMinorTick; y < yMax; y += yMinorTick)
{
points[0].X = minorTickMarkStart;
points[0].Y = y;
points[1].X = minorTickMarkEnd;
points[1].Y = y;
matrix.TransformPoints(points);
minorTickMarkLineFormat.DrawLine(points[0], points[1]);
}
}
double lineSpace = yari.TickLabelsFont.GetHeight(gfx);
int cellSpace = yari.TickLabelsFont.FontFamily.GetLineSpacing(yari.TickLabelsFont.Style);
double xHeight = yari.TickLabelsFont.Metrics.XHeight;
XSize labelSize = new XSize(0, 0);
labelSize.Height = lineSpace * xHeight / cellSpace;
int countTickLabels = (int)((yMax - yMin) / yMajorTick) + 1;
for (int i = 0; i < countTickLabels; ++i)
{
double y = yMin + yMajorTick * i;
string str = y.ToString(yari.TickLabelsFormat);
labelSize.Width = gfx.MeasureString(str, yari.TickLabelsFont).Width;
// Draw major tick marks.
if (yari.MajorTickMark != TickMarkType.None)
{
labelSize.Width += yari.MajorTickMarkWidth * 1.5;
points[0].X = majorTickMarkStart;
points[0].Y = y;
points[1].X = majorTickMarkEnd;
points[1].Y = y;
matrix.TransformPoints(points);
majorTickMarkLineFormat.DrawLine(points[0], points[1]);
}
else
labelSize.Width += SpaceBetweenLabelAndTickmark;
// Draw label text.
XPoint[] layoutText = new XPoint[1];
layoutText[0].X = yari.InnerRect.X + yari.InnerRect.Width - labelSize.Width;
layoutText[0].Y = y;
matrix.TransformPoints(layoutText);
layoutText[0].Y += labelSize.Height / 2; // Center text vertically.
gfx.DrawString(str, yari.TickLabelsFont, yari.TickLabelsBrush, layoutText[0]);
}
// Draw axis.
if (yari.LineFormat != null && yari.LineFormat.Width > 0)
{
points[0].X = yari.InnerRect.X + yari.InnerRect.Width;
points[0].Y = yMin;
points[1].X = yari.InnerRect.X + yari.InnerRect.Width;
points[1].Y = yMax;
matrix.TransformPoints(points);
if (yari.MajorTickMark != TickMarkType.None)
{
// yMax is at the upper side of the axis
points[1].Y -= yari.LineFormat.Width / 2;
points[0].Y += yari.LineFormat.Width / 2;
}
lineFormatRenderer.DrawLine(points[0], points[1]);
}
// Draw axis title
if (yari.axisTitleRendererInfo != null && yari.axisTitleRendererInfo.AxisTitleText != "")
{
RendererParameters parms = new RendererParameters();
parms.Graphics = gfx;
parms.RendererInfo = yari;
double width = yari.axisTitleRendererInfo.Width;
yari.axisTitleRendererInfo.Rect = yari.InnerRect;
yari.axisTitleRendererInfo.Width = width;
AxisTitleRenderer atr = new AxisTitleRenderer(parms);
atr.Draw();
}
}
/// <summary>
/// Creates a new instance of the XGraphics class from a System.Drawing.Graphics object.
/// </summary>
public static XGraphics FromGraphics(Graphics graphics, XSize size, XGraphicsUnit unit)
{
// TODO: Get object from cache...
return new XGraphics(graphics, size, unit, XPageDirection.Downwards);
}
///// <summary>
///// Creates a new instance of the XGraphics class from a System.Drawing.Graphics object.
///// </summary>
//public static XGraphics FromGraphics(Graphics graphics, XSize size, XPageDirection pageDirection)
//{
// // TODO: Get object from cache...
// return new XGraphics(graphics, size, XGraphicsUnit.Point, pageDirection);
//}
///// <summary>
///// Creates a new instance of the XGraphics class from a System.Drawing.Graphics object.
///// </summary>
//public static XGraphics FromGraphics(Graphics graphics, XSize size, XGraphicsUnit unit, XPageDirection pageDirection)
//{
// // TODO: Get object from cache...
// return new XGraphics(graphics, size, XGraphicsUnit.Point, pageDirection);
//}
#endif
#if WPF && !SILVERLIGHT
/// <summary>
/// Creates a new instance of the XGraphics class from a System.Windows.Media.DrawingContext object.
/// </summary>
public static XGraphics FromDrawingContext(DrawingContext drawingContext, XSize size, XGraphicsUnit unit)
{
return new XGraphics(drawingContext, size, unit, XPageDirection.Downwards);
}
/// <summary>
/// Creates a bar code from the specified code type.
/// </summary>
public static BarCode FromType(CodeType type, string text, XSize size)
{
return FromType(type, text, size, CodeDirection.LeftToRight);
}
/// <summary>
/// Returns the rectangle that results from expanding the specified rectangle by the specified Size, in all directions.
/// </summary>
public static XRect Inflate(XRect rect, XSize size)
{
rect.Inflate(size.Width, size.Height);
return(rect);
}
/// <summary>
/// Creates between 1 and 5 Béziers curves from parameters specified like in WPF.
/// </summary>
public static List <XPoint> BezierCurveFromArc(XPoint point1, XPoint point2, XSize size,
double rotationAngle, bool isLargeArc, bool clockwise, PathStart pathStart)
{
// See also http://www.charlespetzold.com/blog/blog.xml from January 2, 2008:
// http://www.charlespetzold.com/blog/2008/01/Mathematics-of-ArcSegment.html
double δx = size.Width;
double δy = size.Height;
Debug.Assert(δx * δy > 0);
double factor = δy / δx;
bool isCounterclockwise = !clockwise;
// Adjust for different radii and rotation angle.
XMatrix matrix = new XMatrix();
matrix.RotateAppend(-rotationAngle);
matrix.ScaleAppend(δy / δx, 1);
XPoint pt1 = matrix.Transform(point1);
XPoint pt2 = matrix.Transform(point2);
// Get info about chord that connects both points.
XPoint midPoint = new XPoint((pt1.X + pt2.X) / 2, (pt1.Y + pt2.Y) / 2);
XVector vect = pt2 - pt1;
double halfChord = vect.Length / 2;
// Get vector from chord to center.
XVector vectRotated;
// (comparing two Booleans here!)
if (isLargeArc == isCounterclockwise)
{
vectRotated = new XVector(-vect.Y, vect.X);
}
else
{
vectRotated = new XVector(vect.Y, -vect.X);
}
vectRotated.Normalize();
// Distance from chord to center.
double centerDistance = Math.Sqrt(δy * δy - halfChord * halfChord);
if (double.IsNaN(centerDistance))
{
centerDistance = 0;
}
// Calculate center point.
XPoint center = midPoint + centerDistance * vectRotated;
// Get angles from center to the two points.
double α = Math.Atan2(pt1.Y - center.Y, pt1.X - center.X);
double β = Math.Atan2(pt2.Y - center.Y, pt2.X - center.X);
// (another comparison of two Booleans!)
if (isLargeArc == (Math.Abs(β - α) < Math.PI))
{
if (α < β)
{
α += 2 * Math.PI;
}
else
{
β += 2 * Math.PI;
}
}
// Invert matrix for final point calculation.
matrix.Invert();
double sweepAngle = β - α;
// Let the algorithm of GDI+ DrawArc to Bézier curves do the rest of the job
return(BezierCurveFromArc(center.X - δx * factor, center.Y - δy, 2 * δx * factor, 2 * δy,
α / Calc.Deg2Rad, sweepAngle / Calc.Deg2Rad, pathStart, ref matrix));
}
/// <summary>
/// Indicates whether this instance and a specified size are equal.
/// </summary>
public bool Equals(XSize value)
{
return Equals(this, value);
}
/// <summary>
/// Parses the size from a string.
/// </summary>
public static XSize Parse(string source)
{
XSize empty;
CultureInfo cultureInfo = CultureInfo.InvariantCulture;
TokenizerHelper helper = new TokenizerHelper(source, cultureInfo);
string str = helper.NextTokenRequired();
if (str == "Empty")
empty = Empty;
else
empty = new XSize(Convert.ToDouble(str, cultureInfo), Convert.ToDouble(helper.NextTokenRequired(), cultureInfo));
helper.LastTokenRequired();
return empty;
}
/// <summary>
/// Creates a new instance of the XGraphics class from a System.Windows.Media.DrawingContext object.
/// </summary>
public static XGraphics FromCanvas(Canvas canvas, XSize size, XGraphicsUnit unit)
{
return new XGraphics(canvas, size, unit, XPageDirection.Downwards);
}
/// <summary>
///
/// </summary>
/// <param name="pg"></param>
/// <param name="dx"></param>
/// <param name="dy"></param>
/// <param name="scale"></param>
/// <returns></returns>
public static PDF.XGraphicsPath ToXGraphicsPath(this IPathGeometry pg, double dx, double dy, Func <double, double> scale)
{
var gp = new PDF.XGraphicsPath()
{
FillMode = pg.FillRule == FillRule.EvenOdd ? PDF.XFillMode.Alternate : PDF.XFillMode.Winding
};
foreach (var pf in pg.Figures)
{
var startPoint = pf.StartPoint;
foreach (var segment in pf.Segments)
{
if (segment is IArcSegment arcSegment)
{
#if WPF
var point1 = new PDF.XPoint(
scale(startPoint.X + dx),
scale(startPoint.Y + dy));
var point2 = new PDF.XPoint(
scale(arcSegment.Point.X + dx),
scale(arcSegment.Point.Y + dy));
var size = new PDF.XSize(
scale(arcSegment.Size.Width),
scale(arcSegment.Size.Height));
gp.AddArc(
point1,
point2,
size, arcSegment.RotationAngle, arcSegment.IsLargeArc,
arcSegment.SweepDirection == SweepDirection.Clockwise ? PDF.XSweepDirection.Clockwise : PDF.XSweepDirection.Counterclockwise);
startPoint = arcSegment.Point;
#else
throw new NotSupportedException("Not supported segment type: " + segment.GetType());
// TODO: Convert WPF/SVG elliptical arc segment format to GDI+ bezier curves.
//startPoint = arcSegment.Point;
#endif
}
else if (segment is ICubicBezierSegment cubicBezierSegment)
{
gp.AddBezier(
scale(startPoint.X + dx),
scale(startPoint.Y + dy),
scale(cubicBezierSegment.Point1.X + dx),
scale(cubicBezierSegment.Point1.Y + dy),
scale(cubicBezierSegment.Point2.X + dx),
scale(cubicBezierSegment.Point2.Y + dy),
scale(cubicBezierSegment.Point3.X + dx),
scale(cubicBezierSegment.Point3.Y + dy));
startPoint = cubicBezierSegment.Point3;
}
else if (segment is ILineSegment)
{
var lineSegment = segment as ILineSegment;
gp.AddLine(
scale(startPoint.X + dx),
scale(startPoint.Y + dy),
scale(lineSegment.Point.X + dx),
scale(lineSegment.Point.Y + dy));
startPoint = lineSegment.Point;
}
else if (segment is IPolyCubicBezierSegment polyCubicBezierSegment)
{
if (polyCubicBezierSegment.Points.Length >= 3)
{
gp.AddBezier(
scale(startPoint.X + dx),
scale(startPoint.Y + dy),
scale(polyCubicBezierSegment.Points[0].X + dx),
scale(polyCubicBezierSegment.Points[0].Y + dy),
scale(polyCubicBezierSegment.Points[1].X + dx),
scale(polyCubicBezierSegment.Points[1].Y + dy),
scale(polyCubicBezierSegment.Points[2].X + dx),
scale(polyCubicBezierSegment.Points[2].Y + dy));
}
if (polyCubicBezierSegment.Points.Length > 3 &&
polyCubicBezierSegment.Points.Length % 3 == 0)
{
for (int i = 3; i < polyCubicBezierSegment.Points.Length; i += 3)
{
gp.AddBezier(
scale(polyCubicBezierSegment.Points[i - 1].X + dx),
scale(polyCubicBezierSegment.Points[i - 1].Y + dy),
scale(polyCubicBezierSegment.Points[i].X + dx),
scale(polyCubicBezierSegment.Points[i].Y + dy),
scale(polyCubicBezierSegment.Points[i + 1].X + dx),
scale(polyCubicBezierSegment.Points[i + 1].Y + dy),
scale(polyCubicBezierSegment.Points[i + 2].X + dx),
scale(polyCubicBezierSegment.Points[i + 2].Y + dy));
}
}
startPoint = polyCubicBezierSegment.Points.Last();
}
else if (segment is IPolyLineSegment polyLineSegment)
{
if (polyLineSegment.Points.Length >= 1)
{
gp.AddLine(
scale(startPoint.X + dx),
scale(startPoint.Y + dy),
scale(polyLineSegment.Points[0].X + dx),
scale(polyLineSegment.Points[0].Y + dy));
}
if (polyLineSegment.Points.Length > 1)
{
for (int i = 1; i < polyLineSegment.Points.Length; i++)
{
gp.AddLine(
scale(polyLineSegment.Points[i - 1].X + dx),
scale(polyLineSegment.Points[i - 1].Y + dy),
scale(polyLineSegment.Points[i].X + dx),
scale(polyLineSegment.Points[i].Y + dy));
}
}
startPoint = polyLineSegment.Points.Last();
}
else if (segment is IPolyQuadraticBezierSegment polyQuadraticSegment)
{
if (polyQuadraticSegment.Points.Length >= 2)
{
var p1 = startPoint;
var p2 = polyQuadraticSegment.Points[0];
var p3 = polyQuadraticSegment.Points[1];
double x1 = p1.X;
double y1 = p1.Y;
double x2 = p1.X + (2.0 * (p2.X - p1.X)) / 3.0;
double y2 = p1.Y + (2.0 * (p2.Y - p1.Y)) / 3.0;
double x3 = x2 + (p3.X - p1.X) / 3.0;
double y3 = y2 + (p3.Y - p1.Y) / 3.0;
double x4 = p3.X;
double y4 = p3.Y;
gp.AddBezier(
scale(x1 + dx),
scale(y1 + dy),
scale(x2 + dx),
scale(y2 + dy),
scale(x3 + dx),
scale(y3 + dy),
scale(x4 + dx),
scale(y4 + dy));
}
if (polyQuadraticSegment.Points.Length > 2 &&
polyQuadraticSegment.Points.Length % 2 == 0)
{
for (int i = 3; i < polyQuadraticSegment.Points.Length; i += 3)
{
var p1 = polyQuadraticSegment.Points[i - 1];
var p2 = polyQuadraticSegment.Points[i];
var p3 = polyQuadraticSegment.Points[i + 1];
double x1 = p1.X;
double y1 = p1.Y;
double x2 = p1.X + (2.0 * (p2.X - p1.X)) / 3.0;
double y2 = p1.Y + (2.0 * (p2.Y - p1.Y)) / 3.0;
double x3 = x2 + (p3.X - p1.X) / 3.0;
double y3 = y2 + (p3.Y - p1.Y) / 3.0;
double x4 = p3.X;
double y4 = p3.Y;
gp.AddBezier(
scale(x1 + dx),
scale(y1 + dy),
scale(x2 + dx),
scale(y2 + dy),
scale(x3 + dx),
scale(y3 + dy),
scale(x4 + dx),
scale(y4 + dy));
}
}
startPoint = polyQuadraticSegment.Points.Last();
}
else if (segment is IQuadraticBezierSegment quadraticBezierSegment)
{
var p1 = startPoint;
var p2 = quadraticBezierSegment.Point1;
var p3 = quadraticBezierSegment.Point2;
double x1 = p1.X;
double y1 = p1.Y;
double x2 = p1.X + (2.0 * (p2.X - p1.X)) / 3.0;
double y2 = p1.Y + (2.0 * (p2.Y - p1.Y)) / 3.0;
double x3 = x2 + (p3.X - p1.X) / 3.0;
double y3 = y2 + (p3.Y - p1.Y) / 3.0;
double x4 = p3.X;
double y4 = p3.Y;
gp.AddBezier(
scale(x1 + dx),
scale(y1 + dy),
scale(x2 + dx),
scale(y2 + dy),
scale(x3 + dx),
scale(y3 + dy),
scale(x4 + dx),
scale(y4 + dy));
startPoint = quadraticBezierSegment.Point2;
}
else
{
throw new NotSupportedException("Not supported segment type: " + segment.GetType());
}
}
if (pf.IsClosed)
{
gp.CloseFigure();
}
else
{
gp.StartFigure();
}
}
return(gp);
}
/// <summary>
/// Raises the <see cref="E:System.Drawing.Printing.PrintDocument.PrintPage"/> event. It is called before a page prints.
/// </summary>
/// <param name="e">A <see cref="T:System.Drawing.Printing.PrintPageEventArgs"/> that contains the event data.</param>
protected override void OnPrintPage(PrintPageEventArgs e)
{
base.OnPrintPage(e);
if (!e.Cancel)
{
PageSettings settings = e.PageSettings;
try
{
Graphics graphics = e.Graphics;
IntPtr hdc = graphics.GetHdc();
int xOffset = GetDeviceCaps(hdc, PHYSICALOFFSETX);
int yOffset = GetDeviceCaps(hdc, PHYSICALOFFSETY);
graphics.ReleaseHdc(hdc);
graphics.TranslateTransform(-xOffset * 100 / graphics.DpiX, -yOffset * 100 / graphics.DpiY);
// Recall: Width and Height are exchanged when settings.Landscape is true.
XSize size = new XSize(e.PageSettings.Bounds.Width / 100.0 * 72, e.PageSettings.Bounds.Height / 100.0 * 72);
float scale = 100f / 72f;
graphics.ScaleTransform(scale, scale);
// draw line A4 portrait
//graphics.DrawLine(Pens.Red, 0, 0, 21f / 2.54f * 72, 29.7f / 2.54f * 72);
#if WPF
//#warning TODO WPFPDF
// TODO WPFPDF
#else
XGraphics gfx = XGraphics.FromGraphics(graphics, size);
this.renderer.RenderPage(gfx, this.pageNumber);
#endif
}
catch
{
e.Cancel = true;
}
this.pageNumber++;
this.pageCount--;
e.HasMorePages = this.pageCount > 0;
}
}
/// <summary>
/// Handle HTML links by create PDF Documents link either to external URL or to another page in the document.
/// </summary>
private static void HandleLinks(PdfDocument document, HtmlContainer container, XSize orgPageSize, XSize pageSize)
{
foreach (var link in container.GetLinks())
{
int i = (int)(link.Rectangle.Top / pageSize.Height);
for (; i < document.Pages.Count && pageSize.Height * i < link.Rectangle.Bottom; i++)
{
var offset = pageSize.Height * i;
// f*****g position is from the bottom of the page
var xRect = new XRect(link.Rectangle.Left, orgPageSize.Height - (link.Rectangle.Height + link.Rectangle.Top - offset), link.Rectangle.Width, link.Rectangle.Height);
if (link.IsAnchor)
{
// create link to another page in the document
var anchorRect = container.GetElementRectangle(link.AnchorId);
if (anchorRect.HasValue)
{
// document links to the same page as the link is not allowed
int anchorPageIdx = (int)(anchorRect.Value.Top / pageSize.Height);
if (i != anchorPageIdx)
document.Pages[i].AddDocumentLink(new PdfRectangle(xRect), anchorPageIdx);
}
}
else
{
// create link to URL
document.Pages[i].AddWebLink(new PdfRectangle(xRect), link.Href);
}
}
}
}
public void AddArc(XPoint point1, XPoint point2, XSize size, double rotationAngle, bool isLargeArg, XSweepDirection sweepDirection)
{
List<XPoint> points = GeometryHelper.BezierCurveFromArc(point1, point2, size, rotationAngle, isLargeArg,
sweepDirection == XSweepDirection.Clockwise, PathStart.MoveTo1st);
int count = points.Count;
Debug.Assert((count + 2) % 3 == 0);
MoveOrLineTo(points[0].X, points[0].Y);
for (int idx = 1; idx < count; idx += 3)
BezierTo(points[idx].X, points[idx].Y, points[idx + 1].X, points[idx + 1].Y, points[idx + 2].X, points[idx + 2].Y, false);
}