public class CssUtils extends Object
Modifier and Type | Method and Description |
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static boolean |
compareFloats(double d1, double d2)
Helper method for comparing floating point numbers
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static boolean |
compareFloats(float f1, float f2)
Helper method for comparing floating point numbers
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static String |
extractUrl(String url)
Parses url("file.jpg") to file.jpg .
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static int |
findNextUnescapedChar(String source, char ch, int startIndex)
Find the next unescaped character.
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static boolean |
isAngleValue(String value)
Checks whether a string contains an allowed metric unit in HTML/CSS; rad, deg and grad.
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static boolean |
isBase64Data(String data)
Checks if a data is base 64 encoded.
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static boolean |
isColorProperty(String value)
Checks if a value is a color property.
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static boolean |
isEmValue(String value)
Checks whether a string contains an allowed value relative to parent value.
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static boolean |
isExValue(String value)
Checks whether a string contains an allowed value relative to element font height.
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static boolean |
isFontRelativeValue(String value)
Checks whether a string contains an allowed value relative to font.
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static boolean |
isMetricValue(String value)
Checks whether a string contains an allowed metric unit in HTML/CSS; px, in, cm, mm, pc, Q or pt.
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static boolean |
isNumericValue(String value)
Checks whether a string matches a numeric value (e.g.
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static boolean |
isPercentageValue(String value)
Checks whether a string contains a percentage value
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static boolean |
isRelativeValue(String value)
Checks whether a string contains an allowed value relative to previously set value.
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static boolean |
isRemValue(String value)
Checks whether a string contains an allowed value relative to previously set root value.
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static String |
normalizeCssProperty(String str)
Normalizes a CSS property.
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static float |
parseAbsoluteFontSize(String fontSizeValue)
Parses the absolute font size.
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static float |
parseAbsoluteFontSize(String fontSizeValue, String defaultMetric)
Parses the absolute font size.
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static float |
parseAbsoluteLength(String length)
Parses the absolute length.
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static float |
parseAbsoluteLength(String length, String defaultMetric)
Parses a length with an allowed metric unit (px, pt, in, cm, mm, pc, q) or numeric value (e.g.
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static float |
parseAngle(String angle)
Parses a angle with an allowed metric unit (deg, grad, rad) or numeric value (e.g.
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static float |
parseAngle(String angle, String defaultMetric)
Parses an angle with an allowed metric unit (deg, grad, rad) or numeric value (e.g.
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static int[] |
parseAspectRatio(String str)
Parses an aspect ratio into an array with two integers.
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static Double |
parseDouble(String str)
Parses a double without throwing an exception if something goes wrong.
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static Float |
parseFloat(String str)
Parses a float without throwing an exception if something goes wrong.
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static Integer |
parseInteger(String str)
Parses an integer without throwing an exception if something goes wrong.
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static UnitValue |
parseLengthValueToPt(String value, float emValue, float remValue)
Convenience method for parsing a value to pt.
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static float |
parseRelativeFontSize(String relativeFontSizeValue, float baseValue)
Parses the relative font size.
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static float |
parseRelativeValue(String relativeValue, float baseValue)
Parses an relative value based on the base value that was given, in the metric unit of the base value.
(e.g. |
static float |
parseResolution(String resolutionStr)
Parses the resolution.
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static float[] |
parseRgbaColor(String colorValue)
Parses the RGBA color.
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static UnitValue[] |
parseSpecificCornerBorderRadius(String specificBorderRadius, float emValue, float remValue)
Parses the border radius of specific corner.
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static Range |
parseUnicodeRange(String unicodeRange)
Parses the unicode range.
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static String |
removeDoubleSpacesAndTrim(String str)
Removes double spaces and trims a string.
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public static String normalizeCssProperty(String str)
str
- the property
public static String removeDoubleSpacesAndTrim(String str)
str
- the string
public static Integer parseInteger(String str)
str
- a string that might be an integer value
public static Float parseFloat(String str)
str
- a string that might be a float value
public static Double parseDouble(String str)
str
- a string that might be a double value
public static float parseAngle(String angle, String defaultMetric)
angle
- String containing the angle to parse
defaultMetric
- default metric to use in case the input string does not specify a metric
public static float parseAngle(String angle)
angle
- String containing the angle to parse
public static int[] parseAspectRatio(String str)
str
- a string that might contain two integer values
public static float parseAbsoluteLength(String length, String defaultMetric)
length
- the string containing the length.
defaultMetric
- the string containing the metric if it is possible that the length string does not contain one. If null the length is considered to be in px as is default in HTML/CSS.
public static float parseAbsoluteLength(String length)
length
- the length as a string
public static float parseRelativeValue(String relativeValue, float baseValue)
relativeValue
- in %, em or ex.
baseValue
- the value the returned float is based on.
public static UnitValue parseLengthValueToPt(String value, float emValue, float remValue)
value
- the value
emValue
- the em value
remValue
- the root em value
public static float parseAbsoluteFontSize(String fontSizeValue, String defaultMetric)
A numeric value (without px, pt, etc in the given length string) is considered to be in the default metric that was given.
fontSizeValue
- the font size value as a String
defaultMetric
- the string containing the metric if it is possible that the length string does not contain one. If null the length is considered to be in px as is default in HTML/CSS.
float
public static float parseAbsoluteFontSize(String fontSizeValue)
A numeric value (without px, pt, etc in the given length string) is considered to be in the px.
fontSizeValue
- the font size value as a String
float
public static float parseRelativeFontSize(String relativeFontSizeValue, float baseValue)
relativeFontSizeValue
- the relative font size value as a String
baseValue
- the base value
float
public static UnitValue[] parseSpecificCornerBorderRadius(String specificBorderRadius, float emValue, float remValue)
specificBorderRadius
- string that defines the border radius of specific corner.
emValue
- the em value
remValue
- the root em value
UnitValues
that define horizontal and vertical border radius values
public static float parseResolution(String resolutionStr)
resolutionStr
- the resolution as a string
public static boolean isMetricValue(String value)
value
- the string that needs to be checked.
public static boolean isAngleValue(String value)
value
- the string that needs to be checked.
public static boolean isRelativeValue(String value)
value
- the string that needs to be checked.
public static boolean isFontRelativeValue(String value)
value
- the string that needs to be checked.
public static boolean isPercentageValue(String value)
value
- the string that needs to be checked
public static boolean isRemValue(String value)
value
- the string that needs to be checked.
public static boolean isEmValue(String value)
value
- the string that needs to be checked.
public static boolean isExValue(String value)
value
- the string that needs to be checked.
public static boolean isNumericValue(String value)
value
- the string that needs to be checked.
public static String extractUrl(String url)
url("file.jpg")
to file.jpg
.
url
- the url attribute to parse
public static boolean isBase64Data(String data)
data
- the data
public static int findNextUnescapedChar(String source, char ch, int startIndex)
source
- a source
ch
- the character to look for
startIndex
- where to start looking
public static boolean isColorProperty(String value)
value
- the value
public static boolean compareFloats(double d1, double d2)
d1
- first float to compare
d2
- second float to compare
public static boolean compareFloats(float f1, float f2)
f1
- first float to compare
f2
- second float to compare
public static float[] parseRgbaColor(String colorValue)
colorValue
- the color value
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