/// <summary>Applies opacity to an element.</summary>
/// <param name="cssProps">the CSS properties</param>
/// <param name="context">the processor context</param>
/// <param name="container">the container element</param>
public static void ApplyOpacity(IDictionary <String, String> cssProps, ProcessorContext context, IPropertyContainer
container)
{
float?opacity = CssUtils.ParseFloat(cssProps.Get(CssConstants.OPACITY));
if (opacity != null)
{
container.SetProperty(Property.OPACITY, opacity);
}
}
/// <summary>Creates a skewX transformation.</summary>
/// <param name="values">values of the transformation</param>
/// <returns>AffineTransform for the skew operation</returns>
private static AffineTransform CreateSkewXTransformation(IList <String> values)
{
if (values.Count != 1)
{
throw new SvgProcessingException(SvgLogMessageConstant.TRANSFORM_INCORRECT_NUMBER_OF_VALUES);
}
double tan = Math.Tan(MathUtil.ToRadians((float)CssUtils.ParseFloat(values[0])));
//Differs from the notation in the PDF-spec for skews
return(new AffineTransform(1, 0, tan, 1, 0, 0));
}
/// <summary>Evaluates the stop opacity of the specified stop color</summary>
/// <returns>the stop opacity value specified in the stop color</returns>
public virtual float GetStopOpacity()
{
float? result = null;
String opacityValue = GetAttribute(SvgConstants.Tags.STOP_OPACITY);
if (opacityValue != null && !SvgConstants.Values.NONE.EqualsIgnoreCase(opacityValue))
{
result = CssUtils.ParseFloat(opacityValue);
}
return(result != null ? result.Value : 1f);
}
/* (non-Javadoc)
* @see com.itextpdf.html2pdf.css.resolve.HtmlStylesToCssConverter.IAttributeConverter#convert(com.itextpdf.styledxmlparser.html.node.IElementNode, java.lang.String)
*/
public virtual IList <CssDeclaration> Convert(IElementNode element, String value)
{
float?cellPadding = CssUtils.ParseFloat(value);
if (cellPadding != null)
{
if (TagConstants.TABLE.Equals(element.Name()))
{
IDictionary <String, String> styles = new Dictionary <String, String>();
styles.Put(CssConstants.PADDING, value + "px");
ApplyPaddingsToTableCells(element, styles);
}
}
return(JavaCollectionsUtil.EmptyList <CssDeclaration>());
}
/// <summary>Creates a rotate transformation.</summary>
/// <param name="values">values of the transformation</param>
/// <returns>AffineTransform for the rotate operation</returns>
private static AffineTransform CreateRotationTransformation(IList <String> values)
{
if (values.Count != 1 && values.Count != 3)
{
throw new SvgProcessingException(SvgLogMessageConstant.TRANSFORM_INCORRECT_NUMBER_OF_VALUES);
}
double angle = MathUtil.ToRadians((float)CssUtils.ParseFloat(values[0]));
if (values.Count == 3)
{
float centerX = CssUtils.ParseAbsoluteLength(values[1]);
float centerY = CssUtils.ParseAbsoluteLength(values[2]);
return(AffineTransform.GetRotateInstance(angle, centerX, centerY));
}
return(AffineTransform.GetRotateInstance(angle));
}
private static void SetLineHeight(IPropertyContainer elementToSet, String lineHeight, float em, float rem)
{
if (lineHeight != null && !CssConstants.NORMAL.Equals(lineHeight) && !CssConstants.AUTO.Equals(lineHeight)
)
{
if (CssUtils.IsNumericValue(lineHeight))
{
float?number = CssUtils.ParseFloat(lineHeight);
if (number != null)
{
elementToSet.SetProperty(Property.LINE_HEIGHT, LineHeight.CreateMultipliedValue((float)number));
}
else
{
elementToSet.SetProperty(Property.LINE_HEIGHT, LineHeight.CreateNormalValue());
}
}
else
{
UnitValue lineHeightValue = CssUtils.ParseLengthValueToPt(lineHeight, em, rem);
if (lineHeightValue != null && lineHeightValue.IsPointValue())
{
elementToSet.SetProperty(Property.LINE_HEIGHT, LineHeight.CreateFixedValue(lineHeightValue.GetValue()));
}
else
{
if (lineHeightValue != null)
{
elementToSet.SetProperty(Property.LINE_HEIGHT, LineHeight.CreateMultipliedValue(lineHeightValue.GetValue()
/ 100f));
}
else
{
elementToSet.SetProperty(Property.LINE_HEIGHT, LineHeight.CreateNormalValue());
}
}
}
}
else
{
elementToSet.SetProperty(Property.LINE_HEIGHT, LineHeight.CreateNormalValue());
}
}
public override void SetCoordinates(String[] coordinates, Point startPoint)
{
if (coordinates.Length == 0 || coordinates.Length % 2 != 0)
{
throw new ArgumentException(MessageFormatUtil.Format(SvgExceptionMessageConstant.LINE_TO_EXPECTS_FOLLOWING_PARAMETERS_GOT_0
, JavaUtil.ArraysToString(coordinates)));
}
this.coordinates = new String[coordinates.Length / 2][];
double[] initialPoint = new double[] { startPoint.GetX(), startPoint.GetY() };
for (int i = 0; i < coordinates.Length; i += 2)
{
String[] curCoordinates = new String[] { coordinates[i], coordinates[i + 1] };
if (IsRelative())
{
curCoordinates = SvgCoordinateUtils.MakeRelativeOperatorCoordinatesAbsolute(curCoordinates, initialPoint);
initialPoint[0] = (float)CssUtils.ParseFloat(curCoordinates[0]);
initialPoint[1] = (float)CssUtils.ParseFloat(curCoordinates[1]);
}
this.coordinates[i / 2] = curCoordinates;
}
}
private static void SetLineHeightByLeading(IPropertyContainer element, String lineHeight, float em, float
rem)
{
// specification does not give auto as a possible lineHeight value
// nevertheless some browsers compute it as normal so we apply the same behaviour.
// What's more, it's basically the same thing as if lineHeight is not set in the first place
if (lineHeight != null && !CssConstants.NORMAL.Equals(lineHeight) && !CssConstants.AUTO.Equals(lineHeight)
)
{
if (CssUtils.IsNumericValue(lineHeight))
{
float?mult = CssUtils.ParseFloat(lineHeight);
if (mult != null)
{
element.SetProperty(Property.LEADING, new Leading(Leading.MULTIPLIED, (float)mult));
}
}
else
{
UnitValue lineHeightValue = CssUtils.ParseLengthValueToPt(lineHeight, em, rem);
if (lineHeightValue != null && lineHeightValue.IsPointValue())
{
element.SetProperty(Property.LEADING, new Leading(Leading.FIXED, lineHeightValue.GetValue()));
}
else
{
if (lineHeightValue != null)
{
element.SetProperty(Property.LEADING, new Leading(Leading.MULTIPLIED, lineHeightValue.GetValue() / 100));
}
}
}
}
else
{
element.SetProperty(Property.LEADING, new Leading(Leading.MULTIPLIED, DEFAULT_LINE_HEIGHT));
}
}
/* (non-Javadoc)
* @see com.itextpdf.html2pdf.css.resolve.HtmlStylesToCssConverter.IAttributeConverter#convert(com.itextpdf.styledxmlparser.html.node.IElementNode, java.lang.String)
*/
public virtual IList <CssDeclaration> Convert(IElementNode element, String value)
{
float?width = CssUtils.ParseFloat(value);
if (width != null)
{
if (TagConstants.TABLE.Equals(element.Name()) && width != 0)
{
IList <CssDeclaration> declarations = new BorderShorthandResolver().ResolveShorthand("1px solid");
IDictionary <String, String> styles = new Dictionary <String, String>(declarations.Count);
foreach (CssDeclaration declaration in declarations)
{
styles.Put(declaration.GetProperty(), declaration.GetExpression());
}
ApplyBordersToTableCells(element, styles);
}
if (width >= 0)
{
return(JavaUtil.ArraysAsList(new CssDeclaration(CssConstants.BORDER, value + "px solid")));
}
}
return(JavaCollectionsUtil.EmptyList <CssDeclaration>());
}
public virtual void NinetyDegreesTest()
{
AffineTransform expected = new AffineTransform(1d, 0d, Math.Tan(MathUtil.ToRadians((float)CssUtils.ParseFloat
("90"))), 1d, 0d, 0d);
AffineTransform actual = TransformUtils.ParseTransform("skewX(90)");
NUnit.Framework.Assert.AreEqual(expected, actual);
}
public override void Draw(PdfCanvas canvas)
{
Point start = new Point(startPoint.x * .75, startPoint.y * .75);
// pixels to points
double rx = Math.Abs(CssUtils.ParseAbsoluteLength(coordinates[0]));
double ry = Math.Abs(CssUtils.ParseAbsoluteLength(coordinates[1]));
// φ is taken mod 360 degrees.
double rotation = Double.Parse(coordinates[2], System.Globalization.CultureInfo.InvariantCulture) % 360.0;
// rotation argument is given in degrees, but we need radians for easier trigonometric calculations
rotation = MathUtil.ToRadians(rotation);
// binary flags (Value correction: any nonzero value for either of the flags fA or fS is taken to mean the value 1.)
bool largeArc = !CssUtils.CompareFloats((float)CssUtils.ParseFloat(coordinates[3]), 0);
bool sweep = !CssUtils.CompareFloats((float)CssUtils.ParseFloat(coordinates[4]), 0);
Point end = new Point(CssUtils.ParseAbsoluteLength(coordinates[5]), CssUtils.ParseAbsoluteLength(coordinates
[6]));
if (CssUtils.CompareFloats(start.x, end.x) && CssUtils.CompareFloats(start.y, end.y))
{
/* edge case: If the endpoints (x1, y1) and (x2, y2) are identical,
* then this is equivalent to omitting the elliptical arc segment entirely.
*/
return;
}
if (CssUtils.CompareFloats(rx, 0) || CssUtils.CompareFloats(ry, 0))
{
/* edge case: If rx = 0 or ry = 0 then this arc is treated as a straight line segment (a "lineto")
* joining the endpoints.
*/
canvas.LineTo(end.x, end.y);
}
else
{
/* This is the first step of calculating a rotated elliptical path.
* We must simulate a transformation on the end-point in order to calculate appropriate EllipseArc angles;
* if we don't do this, then the EllipseArc class will calculate the correct bounding rectangle,
* but an incorrect starting angle and/or extent.
*/
EllipticalCurveTo.EllipseArc arc;
if (CssUtils.CompareFloats(rotation, 0))
{
arc = EllipticalCurveTo.EllipseArc.GetEllipse(start, end, rx, ry, sweep, largeArc);
}
else
{
AffineTransform normalizer = AffineTransform.GetRotateInstance(-rotation);
normalizer.Translate(-start.x, -start.y);
Point newArcEnd = normalizer.Transform(end, null);
newArcEnd.Translate(start.x, start.y);
arc = EllipticalCurveTo.EllipseArc.GetEllipse(start, newArcEnd, rx, ry, sweep, largeArc);
}
Point[][] points = MakePoints(PdfCanvas.BezierArc(arc.ll.x, arc.ll.y, arc.ur.x, arc.ur.y, arc.startAng, arc
.extent));
if (sweep)
{
points = Rotate(points, rotation, points[0][0]);
for (int i = 0; i < points.Length; i++)
{
DrawCurve(canvas, points[i][1], points[i][2], points[i][3]);
}
}
else
{
points = Rotate(points, rotation, points[points.Length - 1][3]);
for (int i = points.Length - 1; i >= 0; i--)
{
DrawCurve(canvas, points[i][2], points[i][1], points[i][0]);
}
}
}
}
protected internal virtual Point CreatePoint(String coordX, String coordY)
{
return(new Point((float)CssUtils.ParseFloat(coordX), (float)CssUtils.ParseFloat(coordY)));
}
/// <summary>Applies font styles to an element.</summary>
/// <param name="cssProps">the CSS props</param>
/// <param name="context">the processor context</param>
/// <param name="stylesContainer">the styles container</param>
/// <param name="element">the element</param>
public static void ApplyFontStyles(IDictionary <String, String> cssProps, ProcessorContext context, IStylesContainer
stylesContainer, IPropertyContainer element)
{
float em = CssUtils.ParseAbsoluteLength(cssProps.Get(CssConstants.FONT_SIZE));
float rem = context.GetCssContext().GetRootFontSize();
if (em != 0)
{
element.SetProperty(Property.FONT_SIZE, UnitValue.CreatePointValue(em));
}
if (cssProps.Get(CssConstants.FONT_FAMILY) != null)
{
// TODO DEVSIX-2534
IList <String> fontFamilies = FontFamilySplitter.SplitFontFamily(cssProps.Get(CssConstants.FONT_FAMILY));
element.SetProperty(Property.FONT, fontFamilies.ToArray(new String[fontFamilies.Count]));
}
if (cssProps.Get(CssConstants.FONT_WEIGHT) != null)
{
element.SetProperty(Property.FONT_WEIGHT, cssProps.Get(CssConstants.FONT_WEIGHT));
}
if (cssProps.Get(CssConstants.FONT_STYLE) != null)
{
element.SetProperty(Property.FONT_STYLE, cssProps.Get(CssConstants.FONT_STYLE));
}
String cssColorPropValue = cssProps.Get(CssConstants.COLOR);
if (cssColorPropValue != null)
{
TransparentColor transparentColor;
if (!CssConstants.TRANSPARENT.Equals(cssColorPropValue))
{
float[] rgbaColor = CssUtils.ParseRgbaColor(cssColorPropValue);
Color color = new DeviceRgb(rgbaColor[0], rgbaColor[1], rgbaColor[2]);
float opacity = rgbaColor[3];
transparentColor = new TransparentColor(color, opacity);
}
else
{
transparentColor = new TransparentColor(ColorConstants.BLACK, 0f);
}
element.SetProperty(Property.FONT_COLOR, transparentColor);
}
// Make sure to place that before text-align applier
String direction = cssProps.Get(CssConstants.DIRECTION);
if (CssConstants.RTL.Equals(direction))
{
element.SetProperty(Property.BASE_DIRECTION, BaseDirection.RIGHT_TO_LEFT);
element.SetProperty(Property.TEXT_ALIGNMENT, TextAlignment.RIGHT);
}
else
{
if (CssConstants.LTR.Equals(direction))
{
element.SetProperty(Property.BASE_DIRECTION, BaseDirection.LEFT_TO_RIGHT);
element.SetProperty(Property.TEXT_ALIGNMENT, TextAlignment.LEFT);
}
}
if (stylesContainer is IElementNode && ((IElementNode)stylesContainer).ParentNode() is IElementNode && CssConstants
.RTL.Equals(((IElementNode)((IElementNode)stylesContainer).ParentNode()).GetStyles().Get(CssConstants.
DIRECTION)) && !element.HasProperty(Property.HORIZONTAL_ALIGNMENT))
{
// We should only apply horizontal alignment if parent has dir attribute or direction property
element.SetProperty(Property.HORIZONTAL_ALIGNMENT, HorizontalAlignment.RIGHT);
}
// Make sure to place that after direction applier
String align = cssProps.Get(CssConstants.TEXT_ALIGN);
if (CssConstants.LEFT.Equals(align))
{
element.SetProperty(Property.TEXT_ALIGNMENT, TextAlignment.LEFT);
}
else
{
if (CssConstants.RIGHT.Equals(align))
{
element.SetProperty(Property.TEXT_ALIGNMENT, TextAlignment.RIGHT);
}
else
{
if (CssConstants.CENTER.Equals(align))
{
element.SetProperty(Property.TEXT_ALIGNMENT, TextAlignment.CENTER);
}
else
{
if (CssConstants.JUSTIFY.Equals(align))
{
element.SetProperty(Property.TEXT_ALIGNMENT, TextAlignment.JUSTIFIED);
element.SetProperty(Property.SPACING_RATIO, 1f);
}
}
}
}
String whiteSpace = cssProps.Get(CssConstants.WHITE_SPACE);
element.SetProperty(Property.NO_SOFT_WRAP_INLINE, CssConstants.NOWRAP.Equals(whiteSpace) || CssConstants.PRE
.Equals(whiteSpace));
String textDecorationProp = cssProps.Get(CssConstants.TEXT_DECORATION);
if (textDecorationProp != null)
{
String[] textDecorations = iText.IO.Util.StringUtil.Split(textDecorationProp, "\\s+");
IList <Underline> underlineList = new List <Underline>();
foreach (String textDecoration in textDecorations)
{
if (CssConstants.BLINK.Equals(textDecoration))
{
logger.Error(iText.Html2pdf.LogMessageConstant.TEXT_DECORATION_BLINK_NOT_SUPPORTED);
}
else
{
if (CssConstants.LINE_THROUGH.Equals(textDecoration))
{
underlineList.Add(new Underline(null, .75f, 0, 0, 1 / 4f, PdfCanvasConstants.LineCapStyle.BUTT));
}
else
{
if (CssConstants.OVERLINE.Equals(textDecoration))
{
underlineList.Add(new Underline(null, .75f, 0, 0, 9 / 10f, PdfCanvasConstants.LineCapStyle.BUTT));
}
else
{
if (CssConstants.UNDERLINE.Equals(textDecoration))
{
underlineList.Add(new Underline(null, .75f, 0, 0, -1 / 10f, PdfCanvasConstants.LineCapStyle.BUTT));
}
else
{
if (CssConstants.NONE.Equals(textDecoration))
{
underlineList = null;
// if none and any other decoration are used together, none is displayed
break;
}
}
}
}
}
}
element.SetProperty(Property.UNDERLINE, underlineList);
}
String textIndent = cssProps.Get(CssConstants.TEXT_INDENT);
if (textIndent != null)
{
UnitValue textIndentValue = CssUtils.ParseLengthValueToPt(textIndent, em, rem);
if (textIndentValue != null)
{
if (textIndentValue.IsPointValue())
{
element.SetProperty(Property.FIRST_LINE_INDENT, textIndentValue.GetValue());
}
else
{
logger.Error(MessageFormatUtil.Format(iText.Html2pdf.LogMessageConstant.CSS_PROPERTY_IN_PERCENTS_NOT_SUPPORTED
, CssConstants.TEXT_INDENT));
}
}
}
String letterSpacing = cssProps.Get(CssConstants.LETTER_SPACING);
if (letterSpacing != null && !letterSpacing.Equals(CssConstants.NORMAL))
{
UnitValue letterSpacingValue = CssUtils.ParseLengthValueToPt(letterSpacing, em, rem);
if (letterSpacingValue.IsPointValue())
{
element.SetProperty(Property.CHARACTER_SPACING, letterSpacingValue.GetValue());
}
}
// browsers ignore values in percents
String wordSpacing = cssProps.Get(CssConstants.WORD_SPACING);
if (wordSpacing != null)
{
UnitValue wordSpacingValue = CssUtils.ParseLengthValueToPt(wordSpacing, em, rem);
if (wordSpacingValue != null)
{
if (wordSpacingValue.IsPointValue())
{
element.SetProperty(Property.WORD_SPACING, wordSpacingValue.GetValue());
}
}
}
// browsers ignore values in percents
String lineHeight = cssProps.Get(CssConstants.LINE_HEIGHT);
// specification does not give auto as a possible lineHeight value
// nevertheless some browsers compute it as normal so we apply the same behaviour.
// What's more, it's basically the same thing as if lineHeight is not set in the first place
if (lineHeight != null && !CssConstants.NORMAL.Equals(lineHeight) && !CssConstants.AUTO.Equals(lineHeight)
)
{
if (CssUtils.IsNumericValue(lineHeight))
{
float?mult = CssUtils.ParseFloat(lineHeight);
if (mult != null)
{
element.SetProperty(Property.LEADING, new Leading(Leading.MULTIPLIED, (float)mult));
}
}
else
{
UnitValue lineHeightValue = CssUtils.ParseLengthValueToPt(lineHeight, em, rem);
if (lineHeightValue != null && lineHeightValue.IsPointValue())
{
element.SetProperty(Property.LEADING, new Leading(Leading.FIXED, lineHeightValue.GetValue()));
}
else
{
if (lineHeightValue != null)
{
element.SetProperty(Property.LEADING, new Leading(Leading.MULTIPLIED, lineHeightValue.GetValue() / 100));
}
}
}
}
else
{
element.SetProperty(Property.LEADING, new Leading(Leading.MULTIPLIED, 1.2f));
}
}
){kind=link}
){kind=link}
){kind=link}
){kind=link}
){kind=link}