com.itextpdf.svg.utils

Class SvgCssUtils

java.lang.Object

com.itextpdf.svg.utils.SvgCssUtils

public final class SvgCssUtils
extends Object

Utility class that facilitates parsing values from CSS.

Method Summary

Modifier and Type	Method and Description
static String	convertDoubleToString(double value) Deprecated. can be replaced by Double.toString(float)
static String	convertFloatToString(float value) Deprecated. can be replaced by Float.toString(float)
static com.itextpdf.kernel.geom.Rectangle	extractWidthAndHeight(ISvgNodeRenderer svgRenderer, float em, SvgDrawContext context) Extract width and height of the passed SVGNodeRenderer, defaulting to SvgDrawContext.getCustomViewport() if either one is not present.
static float	parseAbsoluteHorizontalLength(AbstractSvgNodeRenderer svgNodeRenderer, String length, float defaultValue, SvgDrawContext context) Parses horizontal length attribute and converts it to an absolute value.
static float	parseAbsoluteLength(AbstractSvgNodeRenderer svgNodeRenderer, String length, float percentBaseValue, float defaultValue, SvgDrawContext context) Parse length attribute and convert it to an absolute value.
static float	parseAbsoluteVerticalLength(AbstractSvgNodeRenderer svgNodeRenderer, String length, float defaultValue, SvgDrawContext context) Parses vertical length attribute and converts it to an absolute value.
static float[]	parseViewBox(ISvgNodeRenderer svgRenderer) Extract svg viewbox values.
static List<String>	splitValueList(String value) Splits a given String into a list of substrings.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

splitValueList

public static List<String> splitValueList(String value)

Splits a given String into a list of substrings. The string is split up by commas and whitespace characters (\t, \n, \r, \f).

Parameters:

value - the string to be split

Returns:

a list containing the split strings, an empty list if the value is null or empty

convertFloatToString

@Deprecated
public static String convertFloatToString(float value)

Deprecated. can be replaced by Float.toString(float)

Converts a float to a String.

Parameters:

value - to be converted float value

Returns:

the value in a String representation

convertDoubleToString

@Deprecated
public static String convertDoubleToString(double value)

Deprecated. can be replaced by Double.toString(float)

Converts a double to a String.

Parameters:

value - to be converted double value

Returns:

the value in a String representation

parseAbsoluteLength

public static float parseAbsoluteLength(AbstractSvgNodeRenderer svgNodeRenderer,
                                        String length,
                                        float percentBaseValue,
                                        float defaultValue,
                                        SvgDrawContext context)

Parse length attribute and convert it to an absolute value.

Parameters:

svgNodeRenderer - renderer for which length should be parsed

length - String for parsing

percentBaseValue - the value on which percent length is based on

defaultValue - default value if length is not recognized

context - current SvgDrawContext

Returns:

absolute value in points

parseAbsoluteVerticalLength

public static float parseAbsoluteVerticalLength(AbstractSvgNodeRenderer svgNodeRenderer,
                                                String length,
                                                float defaultValue,
                                                SvgDrawContext context)

Parses vertical length attribute and converts it to an absolute value.

Parameters:

svgNodeRenderer - renderer for which length should be parsed

length - String for parsing

defaultValue - default value if length is not recognized

context - current SvgDrawContext

Returns:

absolute value in points

parseAbsoluteHorizontalLength

public static float parseAbsoluteHorizontalLength(AbstractSvgNodeRenderer svgNodeRenderer,
                                                  String length,
                                                  float defaultValue,
                                                  SvgDrawContext context)

Parses horizontal length attribute and converts it to an absolute value.

Parameters:

svgNodeRenderer - renderer for which length should be parsed

length - String for parsing

defaultValue - default value if length is not recognized

context - current SvgDrawContext

Returns:

absolute value in points

parseViewBox

public static float[] parseViewBox(ISvgNodeRenderer svgRenderer)

Extract svg viewbox values.

Parameters:

svgRenderer - the ISvgNodeRenderer instance that contains the renderer tree

Returns:

float[4] or null, if no correct viewbox property is present.

extractWidthAndHeight

public static com.itextpdf.kernel.geom.Rectangle extractWidthAndHeight(ISvgNodeRenderer svgRenderer,
                                                                       float em,
                                                                       SvgDrawContext context)

Extract width and height of the passed SVGNodeRenderer, defaulting to SvgDrawContext.getCustomViewport() if either one is not present. If SvgDrawContext.getCustomViewport() isn't specified, than respective viewbox values or browser default (if viewbox is missing) will be used.

Parameters:

svgRenderer - the ISvgNodeRenderer instance that contains the renderer tree

em - em value in pt

context - the svg draw context

Returns:

rectangle, where x,y = 0 and width and height are extracted ones by this method.