com.itextpdf.svg.utils

Class SvgTextUtil

java.lang.Object

com.itextpdf.svg.utils.SvgTextUtil

public final class SvgTextUtil
extends Object

Class containing utility methods for text operations in the context of SVG processing

Method Summary

Modifier and Type	Method and Description
static void	applyTextDecoration(ISvgTextNodeRenderer renderer, boolean doFill, boolean doStroke, SvgDrawContext context) Processes text-decoration attribute which is shorthand for text-decoration-line and text-decoration-style.
static String	filterReferenceValue(String name) The reference value may contain a hashtag character or 'url' designation and this method will filter them.
static boolean	isOnlyWhiteSpace(String s) Check if the String is only composed of whitespace characters
static void	processWhiteSpace(TextSvgBranchRenderer root, boolean isLeadingElement) Deprecated. use processWhiteSpace(TextSvgBranchRenderer, boolean, SvgDrawContext) instead
static void	processWhiteSpace(TextSvgBranchRenderer root, boolean isLeadingElement, SvgDrawContext context) Process the whitespace inside the Text Tree.
static float	resolveFontSize(ISvgTextNodeRenderer renderer, float parentFontSize) Deprecated. will be removed together with TextLeafSvgNodeRenderer.getTextContentLength(float, PdfFont)
static String	trimLeadingWhitespace(String toTrim) Trim all the leading whitespace characters from the passed string
static String	trimTrailingWhitespace(String toTrim) Trim all the trailing whitespace characters from the passed string

Methods inherited from class java.lang.Object

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

Method Detail

trimLeadingWhitespace

public static String trimLeadingWhitespace(String toTrim)

Trim all the leading whitespace characters from the passed string

Parameters:

toTrim - string to trim

Returns:

string with all leading whitespace characters removed

trimTrailingWhitespace

public static String trimTrailingWhitespace(String toTrim)

Trim all the trailing whitespace characters from the passed string

Parameters:

toTrim - string to trim

Returns:

string with al trailing whitespace characters removed

processWhiteSpace

@Deprecated
public static void processWhiteSpace(TextSvgBranchRenderer root,
                                                 boolean isLeadingElement)

Deprecated. use processWhiteSpace(TextSvgBranchRenderer, boolean, SvgDrawContext) instead

Process the whitespace inside the Text Tree. Whitespace is collapsed and new lines are handled A leading element in each subtree is handled different: the preceding whitespace is trimmed instead of kept

Parameters:

root - root of the text-renderer subtree

isLeadingElement - true if this element is a leading element(either the first child or the first element after an absolute position change)

processWhiteSpace

public static void processWhiteSpace(TextSvgBranchRenderer root,
                                     boolean isLeadingElement,
                                     SvgDrawContext context)

Process the whitespace inside the Text Tree. Whitespace is collapsed and new lines are handled A leading element in each subtree is handled different: the preceding whitespace is trimmed instead of kept

Parameters:

root - root of the text-renderer subtree

isLeadingElement - true if this element is a leading element(either the first child or the first element after an absolute position change)

context - the svg draw context

isOnlyWhiteSpace

public static boolean isOnlyWhiteSpace(String s)

Check if the String is only composed of whitespace characters

Parameters:

s - string to check

Returns:

true if the string only contains whitespace characters, false otherwise

resolveFontSize

@Deprecated
public static float resolveFontSize(ISvgTextNodeRenderer renderer,
                                                float parentFontSize)

Deprecated. will be removed together with TextLeafSvgNodeRenderer.getTextContentLength(float, PdfFont)

Resolve the font size stored inside the passed renderer

Parameters:

renderer - renderer containing the font size declaration

parentFontSize - parent font size to fall back on if the renderer does not contain a font size declarations or if the stored declaration is invalid

Returns:

float containing the font-size, or the parent font size if the renderer's declaration cannot be resolved

filterReferenceValue

public static String filterReferenceValue(String name)

The reference value may contain a hashtag character or 'url' designation and this method will filter them.

Parameters:

name - value to be filtered

Returns:

filtered value

applyTextDecoration

public static void applyTextDecoration(ISvgTextNodeRenderer renderer,
                                       boolean doFill,
                                       boolean doStroke,
                                       SvgDrawContext context)

Processes text-decoration attribute which is shorthand for text-decoration-line and text-decoration-style.

Note, that text-decoration from styles (resolved in SvgStyleResolver) takes precedence when both are specified.

Parameters:

renderer - to apply text-decoration for

doFill - boolean specifying whether text should be filled

doStroke - boolean specifying whether text should be stroked

context - current SVG draw context