public override ContentObject ToInlineObject(PrimitiveComposer composer)
{
ContentObject barcodeObject = composer.BeginLocalState();
{
fonts::Font font = fonts::PdfType1Font.Load(composer.Scanner.Contents.Document, fonts::PdfType1Font.FamilyEnum.Helvetica, false, false);
double fontSize = (DigitGlyphWidth / font.GetWidth(code.Substring(0, 1), 1));
// 1. Bars.
{
double elementX = DigitWidth;
int[] elementWidths = GetElementWidths();
double guardBarIndentY = DigitHeight / 2;
bool isBar = true;
for (int elementIndex = 0; elementIndex < elementWidths.Length; elementIndex++)
{
double elementWidth = elementWidths[elementIndex];
// Dark element?
/*
* NOTE: EAN symbol elements alternate bars to spaces.
*/
if (isBar)
{
composer.DrawRectangle(
SKRect.Create(
(float)elementX,
0,
(float)elementWidth,
(float)(BarHeight + (
// Guard bar?
Array.BinarySearch <int>(GuardBarIndexes, elementIndex) >= 0
? guardBarIndentY // Guard bar.
: 0 // Symbol character.
))
)
);
}
elementX += elementWidth;
isBar = !isBar;
}
composer.Fill();
}
// 2. Digits.
{
composer.SetFont(font, fontSize);
double digitY = BarHeight + (DigitHeight - (font.GetAscent(fontSize))) / 2;
// Showing the digits...
for (int digitIndex = 0; digitIndex < 13; digitIndex++)
{
string digit = code.Substring(digitIndex, 1);
double pX = DigitGlyphXs[digitIndex] // Digit position.
- font.GetWidth(digit, fontSize) / 2; // Centering.
// Show the current digit!
composer.ShowText(
digit,
new SKPoint((float)pX, (float)digitY)
);
}
}
composer.End();
}
return(barcodeObject);
}
public FormXObject Build(
)
{
bool isRound = type == TypeEnum.Round;
bool isStriped = type == TypeEnum.Striped;
double textScale = .5;
double borderWidth = this.borderWidth.GetValue(width);
double doubleBorderGap = borderDoubled ? borderWidth : 0;
double fontSize = 10;
fontSize *= ((width - (isStriped ? 2 : doubleBorderGap * 2 + (borderWidth * (borderDoubled ? 1.5 : 1) * 2) + width * (isRound ? .15 : .05))) / textScale) / font.GetWidth(text, fontSize);
float height = (float)(isRound ? width : (font.GetAscent(fontSize) * 1.2 + doubleBorderGap * 2 + (borderWidth * (borderDoubled ? 1.5 : 1) * 2)));
SizeF size = new SizeF(width, height);
FormXObject appearance = new FormXObject(document, size);
{
PrimitiveComposer composer = new PrimitiveComposer(appearance);
if (color != null)
{
composer.SetStrokeColor(color);
composer.SetFillColor(color);
}
composer.SetTextScale(textScale);
composer.SetFont(font, fontSize);
composer.ShowText(text, new PointF(size.Width / 2, (float)(size.Height / 2 - font.GetDescent(fontSize) * .4)), XAlignmentEnum.Center, YAlignmentEnum.Middle, 0);
double borderRadius = isRound ? 0 : this.borderRadius.GetValue((size.Width + size.Height) / 2);
RectangleF prevBorderBox = appearance.Box;
for (int borderStep = 0, borderStepLimit = (borderDoubled ? 2 : 1); borderStep < borderStepLimit; borderStep++)
{
if (borderStep == 0)
{
composer.SetLineWidth(borderWidth);
}
else
{
composer.SetLineWidth(composer.State.LineWidth / 2);
}
float lineWidth = (float)(borderStep > 0 ? composer.State.LineWidth / 2 : borderWidth);
float marginY = (float)(lineWidth / 2 + (borderStep > 0 ? composer.State.LineWidth + doubleBorderGap : 0));
float marginX = isStriped ? 0 : marginY;
RectangleF borderBox = new RectangleF(prevBorderBox.X + marginX, prevBorderBox.Y + marginY, prevBorderBox.Width - marginX * 2, prevBorderBox.Height - marginY * 2);
if (isRound)
{
composer.DrawEllipse(borderBox);
}
else
{
if (isStriped)
{
composer.DrawLine(new PointF(borderBox.Left, borderBox.Top), new PointF(borderBox.Right, borderBox.Top));
composer.DrawLine(new PointF(borderBox.Left, borderBox.Bottom), new PointF(borderBox.Right, borderBox.Bottom));
}
else
{
composer.DrawRectangle(borderBox, borderRadius * (1 - .5 * borderStep));
}
}
composer.Stroke();
prevBorderBox = borderBox;
}
composer.Flush();
}
return(appearance);
}
