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/*
* Copyright (c) 2000 World Wide Web Consortium,
* (Massachusetts Institute of Technology, Institut National de
* Recherche en Informatique et en Automatique, Keio University). All
* Rights Reserved. This program is distributed under the W3C's Software
* Intellectual Property License. This program is distributed in the
* hope that it will be useful, but WITHOUT ANY WARRANTY; without even
* the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
* PURPOSE.
* See W3C License http://www.w3.org/Consortium/Legal/ for more details.
*/
package org.w3c.dom.css;
import org.w3c.dom.DOMException;
/**
* The <code>CSSPrimitiveValue</code> interface represents a single CSS value
* . This interface may be used to determine the value of a specific style
* property currently set in a block or to set a specific style property
* explicitly within the block. An instance of this interface might be
* obtained from the <code>getPropertyCSSValue</code> method of the
* <code>CSSStyleDeclaration</code> interface. A
* <code>CSSPrimitiveValue</code> object only occurs in a context of a CSS
* property.
* <p> Conversions are allowed between absolute values (from millimeters to
* centimeters, from degrees to radians, and so on) but not between relative
* values. (For example, a pixel value cannot be converted to a centimeter
* value.) Percentage values can't be converted since they are relative to
* the parent value (or another property value). There is one exception for
* color percentage values: since a color percentage value is relative to
* the range 0-255, a color percentage value can be converted to a number;
* (see also the <code>RGBColor</code> interface).
* <p>See also the <a href='http://www.w3.org/TR/2000/REC-DOM-Level-2-Style-20001113'>Document Object Model (DOM) Level 2 Style Specification</a>.
* @since DOM Level 2
*/
public interface CSSPrimitiveValue extends CSSValue {
// UnitTypes
/**
* The value is not a recognized CSS2 value. The value can only be
* obtained by using the <code>cssText</code> attribute.
*/
public static final short CSS_UNKNOWN = 0;
/**
* The value is a simple number. The value can be obtained by using the
* <code>getFloatValue</code> method.
*/
public static final short CSS_NUMBER = 1;
/**
* The value is a percentage. The value can be obtained by using the
* <code>getFloatValue</code> method.
*/
public static final short CSS_PERCENTAGE = 2;
/**
* The value is a length (ems). The value can be obtained by using the
* <code>getFloatValue</code> method.
*/
public static final short CSS_EMS = 3;
/**
* The value is a length (exs). The value can be obtained by using the
* <code>getFloatValue</code> method.
*/
public static final short CSS_EXS = 4;
/**
* The value is a length (px). The value can be obtained by using the
* <code>getFloatValue</code> method.
*/
public static final short CSS_PX = 5;
/**
* The value is a length (cm). The value can be obtained by using the
* <code>getFloatValue</code> method.
*/
public static final short CSS_CM = 6;
/**
* The value is a length (mm). The value can be obtained by using the
* <code>getFloatValue</code> method.
*/
public static final short CSS_MM = 7;
/**
* The value is a length (in). The value can be obtained by using the
* <code>getFloatValue</code> method.
*/
public static final short CSS_IN = 8;
/**
* The value is a length (pt). The value can be obtained by using the
* <code>getFloatValue</code> method.
*/
public static final short CSS_PT = 9;
/**
* The value is a length (pc). The value can be obtained by using the
* <code>getFloatValue</code> method.
*/
public static final short CSS_PC = 10;
/**
* The value is an angle (deg). The value can be obtained by using the
* <code>getFloatValue</code> method.
*/
public static final short CSS_DEG = 11;
/**
* The value is an angle (rad). The value can be obtained by using the
* <code>getFloatValue</code> method.
*/
public static final short CSS_RAD = 12;
/**
* The value is an angle (grad). The value can be obtained by using the
* <code>getFloatValue</code> method.
*/
public static final short CSS_GRAD = 13;
/**
* The value is a time (ms). The value can be obtained by using the
* <code>getFloatValue</code> method.
*/
public static final short CSS_MS = 14;
/**
* The value is a time (s). The value can be obtained by using the
* <code>getFloatValue</code> method.
*/
public static final short CSS_S = 15;
/**
* The value is a frequency (Hz). The value can be obtained by using the
* <code>getFloatValue</code> method.
*/
public static final short CSS_HZ = 16;
/**
* The value is a frequency (kHz). The value can be obtained by using the
* <code>getFloatValue</code> method.
*/
public static final short CSS_KHZ = 17;
/**
* The value is a number with an unknown dimension. The value can be
* obtained by using the <code>getFloatValue</code> method.
*/
public static final short CSS_DIMENSION = 18;
/**
* The value is a STRING. The value can be obtained by using the
* <code>getStringValue</code> method.
*/
public static final short CSS_STRING = 19;
/**
* The value is a URI. The value can be obtained by using the
* <code>getStringValue</code> method.
*/
public static final short CSS_URI = 20;
/**
* The value is an identifier. The value can be obtained by using the
* <code>getStringValue</code> method.
*/
public static final short CSS_IDENT = 21;
/**
* The value is a attribute function. The value can be obtained by using
* the <code>getStringValue</code> method.
*/
public static final short CSS_ATTR = 22;
/**
* The value is a counter or counters function. The value can be obtained
* by using the <code>getCounterValue</code> method.
*/
public static final short CSS_COUNTER = 23;
/**
* The value is a rect function. The value can be obtained by using the
* <code>getRectValue</code> method.
*/
public static final short CSS_RECT = 24;
/**
* The value is a RGB color. The value can be obtained by using the
* <code>getRGBColorValue</code> method.
*/
public static final short CSS_RGBCOLOR = 25;
/**
* The type of the value as defined by the constants specified above.
*/
public short getPrimitiveType();
/**
* A method to set the float value with a specified unit. If the property
* attached with this value can not accept the specified unit or the
* float value, the value will be unchanged and a
* <code>DOMException</code> will be raised.
* @param unitType A unit code as defined above. The unit code can only
* be a float unit type (i.e. <code>CSS_NUMBER</code>,
* <code>CSS_PERCENTAGE</code>, <code>CSS_EMS</code>,
* <code>CSS_EXS</code>, <code>CSS_PX</code>, <code>CSS_CM</code>,
* <code>CSS_MM</code>, <code>CSS_IN</code>, <code>CSS_PT</code>,
* <code>CSS_PC</code>, <code>CSS_DEG</code>, <code>CSS_RAD</code>,
* <code>CSS_GRAD</code>, <code>CSS_MS</code>, <code>CSS_S</code>,
* <code>CSS_HZ</code>, <code>CSS_KHZ</code>,
* <code>CSS_DIMENSION</code>).
* @param floatValue The new float value.
* @exception DOMException
* INVALID_ACCESS_ERR: Raised if the attached property doesn't support
* the float value or the unit type.
* <br>NO_MODIFICATION_ALLOWED_ERR: Raised if this property is readonly.
*/
public void setFloatValue(short unitType,
float floatValue)
throws DOMException;
/**
* This method is used to get a float value in a specified unit. If this
* CSS value doesn't contain a float value or can't be converted into
* the specified unit, a <code>DOMException</code> is raised.
* @param unitType A unit code to get the float value. The unit code can
* only be a float unit type (i.e. <code>CSS_NUMBER</code>,
* <code>CSS_PERCENTAGE</code>, <code>CSS_EMS</code>,
* <code>CSS_EXS</code>, <code>CSS_PX</code>, <code>CSS_CM</code>,
* <code>CSS_MM</code>, <code>CSS_IN</code>, <code>CSS_PT</code>,
* <code>CSS_PC</code>, <code>CSS_DEG</code>, <code>CSS_RAD</code>,
* <code>CSS_GRAD</code>, <code>CSS_MS</code>, <code>CSS_S</code>,
* <code>CSS_HZ</code>, <code>CSS_KHZ</code>,
* <code>CSS_DIMENSION</code>).
* @return The float value in the specified unit.
* @exception DOMException
* INVALID_ACCESS_ERR: Raised if the CSS value doesn't contain a float
* value or if the float value can't be converted into the specified
* unit.
*/
public float getFloatValue(short unitType)
throws DOMException;
/**
* A method to set the string value with the specified unit. If the
* property attached to this value can't accept the specified unit or
* the string value, the value will be unchanged and a
* <code>DOMException</code> will be raised.
* @param stringType A string code as defined above. The string code can
* only be a string unit type (i.e. <code>CSS_STRING</code>,
* <code>CSS_URI</code>, <code>CSS_IDENT</code>, and
* <code>CSS_ATTR</code>).
* @param stringValue The new string value.
* @exception DOMException
* INVALID_ACCESS_ERR: Raised if the CSS value doesn't contain a string
* value or if the string value can't be converted into the specified
* unit.
* <br>NO_MODIFICATION_ALLOWED_ERR: Raised if this property is readonly.
*/
public void setStringValue(short stringType,
String stringValue)
throws DOMException;
/**
* This method is used to get the string value. If the CSS value doesn't
* contain a string value, a <code>DOMException</code> is raised. Some
* properties (like 'font-family' or 'voice-family') convert a
* whitespace separated list of idents to a string.
* @return The string value in the current unit. The current
* <code>primitiveType</code> can only be a string unit type (i.e.
* <code>CSS_STRING</code>, <code>CSS_URI</code>,
* <code>CSS_IDENT</code> and <code>CSS_ATTR</code>).
* @exception DOMException
* INVALID_ACCESS_ERR: Raised if the CSS value doesn't contain a string
* value.
*/
public String getStringValue()
throws DOMException;
/**
* This method is used to get the Counter value. If this CSS value
* doesn't contain a counter value, a <code>DOMException</code> is
* raised. Modification to the corresponding style property can be
* achieved using the <code>Counter</code> interface.
* @return The Counter value.
* @exception DOMException
* INVALID_ACCESS_ERR: Raised if the CSS value doesn't contain a
* Counter value (e.g. this is not <code>CSS_COUNTER</code>).
*/
public Counter getCounterValue()
throws DOMException;
/**
* This method is used to get the Rect value. If this CSS value doesn't
* contain a rect value, a <code>DOMException</code> is raised.
* Modification to the corresponding style property can be achieved
* using the <code>Rect</code> interface.
* @return The Rect value.
* @exception DOMException
* INVALID_ACCESS_ERR: Raised if the CSS value doesn't contain a Rect
* value. (e.g. this is not <code>CSS_RECT</code>).
*/
public Rect getRectValue()
throws DOMException;
/**
* This method is used to get the RGB color. If this CSS value doesn't
* contain a RGB color value, a <code>DOMException</code> is raised.
* Modification to the corresponding style property can be achieved
* using the <code>RGBColor</code> interface.
* @return the RGB color value.
* @exception DOMException
* INVALID_ACCESS_ERR: Raised if the attached property can't return a
* RGB color value (e.g. this is not <code>CSS_RGBCOLOR</code>).
*/
public RGBColor getRGBColorValue()
throws DOMException;
}
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