Package org.eclipse.tracecompass.tmf.ui.model

Class StyleManager

java.lang.Object

org.eclipse.tracecompass.tmf.ui.model.StyleManager

public class StyleManager
extends Object

A manager for a map of output element styles. Styles have a key that is unique to this manager instance. Style inheritance is possible by having a style refer to a parent style key.

Since:

5.2

Author:

Patrick Tasse

Constructor Summary

Constructors

Constructor	Description
StyleManager(Map<String,OutputElementStyle> styleMap)	Constructor

Method Summary

Modifier and Type	Method	Description
static StyleManager	empty()	Get a manager that has an empty style map.
@Nullable RGBAColor	getColorStyle(OutputElementStyle elementStyle, String property)	Get the style property color value for the specified element style.
@Nullable Float	getFactorStyle(OutputElementStyle elementStyle, String property)	Get the style property factor value for the specified element style.
@Nullable Object	getStyle(OutputElementStyle elementStyle, String property)	Get the style property value for the specified element style.

Methods inherited from class java.lang.Object

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

Constructor Details

StyleManager

public StyleManager(Map<String,OutputElementStyle> styleMap)

Constructor

Parameters:

styleMap - a style map

Method Details

empty

public static StyleManager empty()

Get a manager that has an empty style map. It can be used to resolve element styles that have no parent key.

Returns:

an empty style manager

getStyle

public @Nullable Object getStyle(OutputElementStyle elementStyle,
 String property)

Get the style property value for the specified element style. The style hierarchy is traversed until a value is found.

Parameters:

elementStyle - the style

property - the style property

Returns:

the style value, or null

getFactorStyle

public @Nullable Float getFactorStyle(OutputElementStyle elementStyle,
 String property)

Get the style property factor value for the specified element style. The style hierarchy is traversed until a number value is found, and the returned float value will be multiplied by the first StyleProperties.FACTOR suffixed modifier style that was found along the way, if any.

Parameters:

elementStyle - the style

property - the style property

Returns:

the style float value, or null

getColorStyle

public @Nullable RGBAColor getColorStyle(OutputElementStyle elementStyle,
 String property)

Get the style property color value for the specified element style. The style hierarchy is traversed until a color and opacity value is found, and the returned color value will be blended with the first StyleProperties.BLEND suffixed modifier style that was found along the way, if any.

Parameters:

elementStyle - the style

property - the style property

Returns:

the style value, or null