CssMetaData (JavaFX 8.0)

java.lang. Объект
- javafx.css. CssMetaData <S, V>

Введите Параметры:

S - Тип Styleable

V - Тип, в который преобразовывается проанализированное значение.

Прямые Известные Подклассы:

FontCssMetaData
```
public abstract class CssMetaData<S extends Styleable,V>
extends java.lang.Object
```
Экземпляр CssMetaData предоставляет информацию о стиле CSS и обеспечивает рычаги, которые позволяют CSS устанавливать значение свойства. Это инкапсулирует имя свойства CSS, тип, в который значение CSS преобразовывается, и значение по умолчанию свойства.
CssMetaData является мостом между значением, которое может быть представлено синтаксически в.css файле, и a StyleableProperty. Есть взаимно-однозначное соответствие между CssMetaData и StyleableProperty. Как правило, CssMetaData желания включают CssMetaData его предков. Во время обработки CSS механизм CSS выполняет итерации по CssMetaData Узла, ищет проанализированное значение каждого, преобразовывает проанализированное значение, и устанавливает значение на StyleableProperty.
Метод Node.getCssMetaData() вызывается, чтобы получить Список <CssMetaData>. Этот метод часто вызывают, и благоразумно возвратить статический список вместо того, чтобы создать список на каждом вызове. Условно, классы узла, у которых есть CssMetaData, реализуют статический метод getClassCssMetaData() и это общепринято, чтобы иметь getCssMetaData() просто возвратитесь getClassCssMetaData(). Цель getClassCssMetaData() должен позволить подклассам легко включать CssMetaData некоторого предка.
Этим примером является типичная реализация.
```
 private DoubleProperty gapProperty = new StyleableDoubleProperty(0) {
      @Override 
      public CssMetaData <MyWidget,Number > getCssMetaData() {
          return GAP_META_DATA;
      }

       @Override
      public Object getBean() {
          return MyWidget.this;
      }

       @Override
      public String getName() {
          return "gap";
      }
 };
 
 private static final CssMetaData GAP_META_DATA = 
     new CssMetaData <MyWidget,Number >("-my-gap", StyleConverter.getSizeConverter(), 0d) {
 
         @Override
        public boolean isSettable(MyWidget node) {
            return node.gapProperty == null || !node.gapProperty.isBound();
        }
    
         @Override
        public StyleableProperty <Number > getStyleableProperty(MyWidget node) {
            return (StyleableProperty <Number >)node.gapProperty;
        }
 };
 
 private static final List <CssMetaData <? extends Node, ? > > cssMetaDataList; 
 static {
     List <CssMetaData <? extends Node, ? > > temp =
         new ArrayList <CssMetaData <? extends Node, ? > >(Control.getClassCssMetaData());
     temp.add(GAP_META_DATA);
     cssMetaDataList = Collections.unmodifiableList(temp);
 }
 
 public static List <CssMetaData <? extends Node, ? > > getClassCssMetaData() {
     return cssMetaDataList;
 }
 
  @Override
 public List <CssMetaData <? extends Node, ? > > getCssMetaData() {
     return getClassCssMetaData();
 }
 
```










Constructor Summary

Constructors 

Modifier
Constructor and Description


protected 
CssMetaData(java.lang.String property, StyleConverter<?,V> converter)
Construct a CssMetaData with the given parameters, initialValue is null, inherit is set to false, and no sub-properties.



protected 
CssMetaData(java.lang.String property, StyleConverter<?,V> converter, V initialValue)
Construct a CssMetaData with the given parameters, inherit set to false and no sub-properties.



protected 
CssMetaData(java.lang.String property, StyleConverter<?,V> converter, V initialValue, boolean inherits)
Construct a CssMetaData with the given parameters and no sub-properties.



protected 
CssMetaData(java.lang.String property, StyleConverter<?,V> converter, V initialValue, boolean inherits, java.util.List<CssMetaData<? extends Styleable,?>> subProperties)
Construct a CssMetaData with the given parameters and no sub-properties.










Method Summary

All Methods Методы экземпляра Абстрактные Методы Конкретные Методы Устаревшие Методы 

Modifier and Type
Method and Description


boolean
equals(java.lang.Object obj) 


StyleConverter<?,V>
getConverter() 


V
getInitialValue(S styleable)
The initial value of a CssMetaData corresponds to the default  value of the StyleableProperty in code.



java.lang.String
getProperty() 


abstract StyleableProperty<V>
getStyleableProperty(S styleable)
Return the corresponding StyleableProperty for the given Node.



java.util.List<CssMetaData<? extends Styleable,?>>
getSubProperties()
The sub-properties refers to the constituent properties of this property, if any.



int
hashCode() 


boolean
isInherits()
If true, the value of this property is the same as the parent's computed value of this property.



abstract boolean
isSettable(S styleable)
Check to see if the corresponding property on the given Node is settable.



void
set(S styleable, V value, StyleOrigin origin)
Deprecated. This method is no longer called from CSS code.  Use StyleableProperty.applyStyle(javafx.css.StyleOrigin, java.lang.Object)




java.lang.String
toString() 






Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait














Constructor Detail







CssMetaData
protected CssMetaData(java.lang.String property,
                      StyleConverter<?,V> converter,
                      V initialValue,
                      boolean inherits,
                      java.util.List<CssMetaData<? extends Styleable,?>> subProperties)
Construct a CssMetaData with the given parameters and no sub-properties.

Parameters:
property - the CSS property
converter - the StyleConverter used to convert the CSS parsed value to a Java object.
initalValue - the CSS string
inherits - true if this property uses CSS inheritance
subProperties - the sub-properties of this property. For example, the -fx-font property has the sub-properties -fx-font-family,  -fx-font-size, -fx-font-weight, and -fx-font-style.










CssMetaData
protected CssMetaData(java.lang.String property,
                      StyleConverter<?,V> converter,
                      V initialValue,
                      boolean inherits)
Construct a CssMetaData with the given parameters and no sub-properties.

Parameters:
property - the CSS property
converter - the StyleConverter used to convert the CSS parsed value to a Java object.
initalValue - the CSS string
inherits - true if this property uses CSS inheritance










CssMetaData
protected CssMetaData(java.lang.String property,
                      StyleConverter<?,V> converter,
                      V initialValue)
Construct a CssMetaData with the given parameters, inherit set to false and no sub-properties.

Parameters:
property - the CSS property
converter - the StyleConverter used to convert the CSS parsed value to a Java object.
initalValue - the CSS string








CssMetaData
protected CssMetaData(java.lang.String property,
                      StyleConverter<?,V> converter)
Construct a CssMetaData with the given parameters, initialValue is null, inherit is set to false, and no sub-properties.

Parameters:
property - the CSS property
converter - the StyleConverter used to convert the CSS parsed value to a Java object.
initalValue - the CSS string










Method Detail







set
@Deprecated
public void set(S styleable,
                             V value,
                             StyleOrigin origin)
Deprecated. This method is no longer called from CSS code.  Use StyleableProperty.applyStyle(javafx.css.StyleOrigin, java.lang.Object)
Set the value of the corresponding property on the given Node.

Parameters:
styleable - The Styleable on which the property value is being set
value - The value to which the property is set










isSettable
public abstract boolean isSettable(S styleable)
Check to see if the corresponding property on the given Node is settable. This method is called before any styles are looked up for the given property. It is abstract so that the code can check if the property  is settable without expanding the property. Generally, the property is  settable if it is not null or is not bound.

Parameters:
styleable - The Styleable on which the property value is being set
Returns:
true if the property can be set.










getStyleableProperty
public abstract StyleableProperty<V> getStyleableProperty(S styleable)
Return the corresponding StyleableProperty for the given Node.  Note that calling this method will cause the property to be expanded.

Parameters:
styleable - The Styleable for which the property is returned
Returns:
The StyleableProperty corresponding to this CssMetaData for the given Styleable








getProperty
public final java.lang.String getProperty()

Returns:
the CSS property name








getConverter
public final StyleConverter<?,V> getConverter()

Returns:
The CSS converter that handles conversion from a CSS value to a Java Object










getInitialValue
public V getInitialValue(S styleable)
The initial value of a CssMetaData corresponds to the default  value of the StyleableProperty in code.  For example, the default value of Shape.fill is Color.BLACK and the initialValue of Shape.StyleableProperties.FILL is also Color.BLACK.  There may be exceptions to this, however. The initialValue may depend on the state of the Node. A ScrollBar has a default orientation of  horizontal. If the ScrollBar is vertical, however, this method should return Orientation.VERTICAL. Otherwise, a vertical ScrollBar would be incorrectly set to a horizontal ScrollBar when the initial value is  applied.

Returns:
The initial value of the property, possibly null








getSubProperties
public final java.util.List<CssMetaData<? extends Styleable,?>> getSubProperties()
The sub-properties refers to the constituent properties of this property, if any. For example, "-fx-font-weight" is sub-property of "-fx-font".







isInherits
public final boolean isInherits()
If true, the value of this property is the same as the parent's computed value of this property.

See Also:
CSS Inheritance








equals
public boolean equals(java.lang.Object obj)

Overrides:
equals in class java.lang.Object








hashCode
public int hashCode()

Overrides:
hashCode in class java.lang.Object








toString
public java.lang.String toString()

Overrides:
toString in class java.lang.Object

Modifier	Constructor and Description
`protected`	`CssMetaData(java.lang.String property, StyleConverter<?,V> converter)` Construct a CssMetaData with the given parameters, initialValue is null, inherit is set to false, and no sub-properties.
`protected`	`CssMetaData(java.lang.String property, StyleConverter<?,V> converter, V initialValue)` Construct a CssMetaData with the given parameters, inherit set to false and no sub-properties.
`protected`	`CssMetaData(java.lang.String property, StyleConverter<?,V> converter, V initialValue, boolean inherits)` Construct a CssMetaData with the given parameters and no sub-properties.
`protected`	`CssMetaData(java.lang.String property, StyleConverter<?,V> converter, V initialValue, boolean inherits, java.util.List<CssMetaData<? extends Styleable,?>> subProperties)` Construct a CssMetaData with the given parameters and no sub-properties.

Modifier and Type	Method and Description
`boolean`	`equals(java.lang.Object obj)`
`StyleConverter<?,V>`	`getConverter()`
`V`	`getInitialValue(S styleable)` The initial value of a CssMetaData corresponds to the default value of the StyleableProperty in code.
`java.lang.String`	`getProperty()`
`abstract StyleableProperty<V>`	`getStyleableProperty(S styleable)` Return the corresponding `StyleableProperty` for the given Node.
`java.util.List<CssMetaData<? extends Styleable,?>>`	`getSubProperties()` The sub-properties refers to the constituent properties of this property, if any.
`int`	`hashCode()`
`boolean`	`isInherits()` If true, the value of this property is the same as the parent's computed value of this property.
`abstract boolean`	`isSettable(S styleable)` Check to see if the corresponding property on the given Node is settable.
`void`	`set(S styleable, V value, StyleOrigin origin)` Deprecated. This method is no longer called from CSS code. Use `StyleableProperty.applyStyle(javafx.css.StyleOrigin, java.lang.Object)`
`java.lang.String`	`toString()`

Класс CssMetaData <S расширяет Styleable, V>

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

CssMetaData

CssMetaData

CssMetaData

CssMetaData

Method Detail

set

isSettable

getStyleableProperty

getProperty

getConverter

getInitialValue

getSubProperties

isInherits

equals

hashCode

toString