public virtual void CalculateFontAscenderDescenderFromFontMetricsOpenSansRegularFontTest()
{
PdfFont font = PdfFontFactory.CreateFont(OPEN_SANS_FONTS + "OpenSans-Regular.ttf");
float[] ascenderDescenderFromFontMetrics = TextRenderer.CalculateAscenderDescender(font, RenderingMode.HTML_MODE
);
NUnit.Framework.Assert.AreEqual(1068.0f, ascenderDescenderFromFontMetrics[0], EPS);
NUnit.Framework.Assert.AreEqual(-292.0f, ascenderDescenderFromFontMetrics[1], EPS);
}
public virtual void CalculateFontAscenderDescenderFromFontMetricsFreeSansFontTest()
{
PdfFont font = PdfFontFactory.CreateFont(FONTS + "FreeSans.ttf");
float[] ascenderDescenderFromFontMetrics = TextRenderer.CalculateAscenderDescender(font, RenderingMode.HTML_MODE
);
NUnit.Framework.Assert.AreEqual(800.0f, ascenderDescenderFromFontMetrics[0], EPS);
NUnit.Framework.Assert.AreEqual(-200.0f, ascenderDescenderFromFontMetrics[1], EPS);
}
public virtual void CalculateFontAscenderDescenderFromFontMetricsNotoSansCJKjpBoldFontTest()
{
PdfFont font = PdfFontFactory.CreateFont(FONTS + "NotoSansCJKjp-Bold.otf");
float[] ascenderDescenderFromFontMetrics = TextRenderer.CalculateAscenderDescender(font, RenderingMode.HTML_MODE
);
NUnit.Framework.Assert.AreEqual(1160.0f, ascenderDescenderFromFontMetrics[0], EPS);
NUnit.Framework.Assert.AreEqual(-320.0f, ascenderDescenderFromFontMetrics[1], EPS);
}
public virtual void CalculateFontAscenderDescenderFromFontMetricsNotoColorEmojiFontTest()
{
PdfFont font = PdfFontFactory.CreateFont(FONTS + "NotoColorEmoji.ttf");
float[] ascenderDescenderFromFontMetrics = TextRenderer.CalculateAscenderDescender(font, RenderingMode.HTML_MODE
);
System.Console.Out.WriteLine(ascenderDescenderFromFontMetrics[0]);
System.Console.Out.WriteLine(ascenderDescenderFromFontMetrics[1]);
}
public virtual void CalculateFontAscenderDescenderFromFontMetricsHelveticaTest()
{
PdfFont font = PdfFontFactory.CreateFont(StandardFonts.HELVETICA);
float[] fontAscenderDescender = TextRenderer.CalculateAscenderDescender(font, RenderingMode.HTML_MODE);
NUnit.Framework.Assert.AreEqual(718.0f * TextRenderer.TYPO_ASCENDER_SCALE_COEFF, fontAscenderDescender[0],
EPS);
NUnit.Framework.Assert.AreEqual(-207.0f * TextRenderer.TYPO_ASCENDER_SCALE_COEFF, fontAscenderDescender[1]
, EPS);
}
public virtual void CalculateFontAscenderDescenderFromFontMetricsTimesTest()
{
PdfFont font = PdfFontFactory.CreateFont(StandardFonts.TIMES_ROMAN);
float[] fontAscenderDescender = TextRenderer.CalculateAscenderDescender(font, RenderingMode.HTML_MODE);
NUnit.Framework.Assert.AreEqual(683.0f * TextRenderer.TYPO_ASCENDER_SCALE_COEFF, fontAscenderDescender[0],
EPS);
NUnit.Framework.Assert.AreEqual(-217.0f * TextRenderer.TYPO_ASCENDER_SCALE_COEFF, fontAscenderDescender[1]
, EPS);
}
internal static float[] GetFontAscenderDescenderNormalized(AbstractRenderer renderer)
{
PdfFont font = renderer.ResolveFirstPdfFont();
float fontSize = renderer.GetPropertyAsUnitValue(Property.FONT_SIZE).GetValue();
float[] fontAscenderDescenderFromMetrics = TextRenderer.CalculateAscenderDescender(font, RenderingMode.HTML_MODE
);
float fontAscender = fontAscenderDescenderFromMetrics[0] / FontProgram.UNITS_NORMALIZATION * fontSize;
float fontDescender = fontAscenderDescenderFromMetrics[1] / FontProgram.UNITS_NORMALIZATION * fontSize;
return(new float[] { fontAscender, fontDescender });
}
private float[] CalculateAscenderDescender()
{
PdfFont listItemFont = ResolveFirstPdfFont();
UnitValue fontSize = this.GetPropertyAsUnitValue(Property.FONT_SIZE);
if (listItemFont != null && fontSize != null)
{
if (!fontSize.IsPointValue())
{
ILog logger = LogManager.GetLogger(typeof(iText.Layout.Renderer.ListItemRenderer));
logger.Error(MessageFormatUtil.Format(iText.IO.LogMessageConstant.PROPERTY_IN_PERCENTS_NOT_SUPPORTED, Property
.FONT_SIZE));
}
float[] ascenderDescender = TextRenderer.CalculateAscenderDescender(listItemFont);
return(new float[] { fontSize.GetValue() *ascenderDescender[0] / TextRenderer.TEXT_SPACE_COEFF, fontSize.
GetValue() *ascenderDescender[1] / TextRenderer.TEXT_SPACE_COEFF });
}
return(new float[] { 0, 0 });
}
public virtual TextRectangle GetTextRectangle(SvgDrawContext context, Point basePoint)
{
if (GetParent() is TextSvgBranchRenderer && basePoint != null)
{
float parentFontSize = ((TextSvgBranchRenderer)GetParent()).GetFontSize();
PdfFont parentFont = ((TextSvgBranchRenderer)GetParent()).GetFont();
float textLength = GetTextContentLength(parentFontSize, parentFont);
float[] fontAscenderDescenderFromMetrics = TextRenderer.CalculateAscenderDescender(parentFont, RenderingMode
.HTML_MODE);
float fontAscender = fontAscenderDescenderFromMetrics[0] / FontProgram.UNITS_NORMALIZATION * parentFontSize;
float fontDescender = fontAscenderDescenderFromMetrics[1] / FontProgram.UNITS_NORMALIZATION * parentFontSize;
// TextRenderer#calculateAscenderDescender returns fontDescender as a negative value so we should subtract this value
float textHeight = fontAscender - fontDescender;
return(new TextRectangle((float)basePoint.GetX(), (float)basePoint.GetY() - fontAscender, textLength, textHeight
, (float)basePoint.GetY()));
}
else
{
return(null);
}
}