org.openstreetmap.josm.gui.mappaint.mapcss

Interface Selector

All Known Implementing Classes:

Selector.AbstractSelector, Selector.ChildOrParentSelector, Selector.GeneralSelector, Selector.LinkSelector, Selector.OptimizedGeneralSelector

public interface Selector

MapCSS selector. A rule has two parts, a selector and a declaration block e.g.

 way[highway=residential]
 { width: 10; color: blue; }
 

The selector decides, if the declaration block gets applied or not. All implementing classes of Selector are immutable.

Nested Class Summary

Nested Classes

Modifier and Type	Interface and Description
static class	Selector.AbstractSelector Super class of Selector.GeneralSelector and Selector.LinkSelector.
static class	Selector.ChildOrParentSelector Represents a child selector or a parent selector.
static class	Selector.ChildOrParentSelectorType
static class	Selector.GeneralSelector
static class	Selector.LinkSelector
static class	Selector.OptimizedGeneralSelector

Method Summary

Modifier and Type	Method and Description
Range	getRange()
Subpart	getSubpart()
boolean	matches(Environment env) Apply the selector to the primitive and check if it matches.
Selector	optimizedBaseCheck() Create an "optimized" copy of this selector that omits the base check.

Method Detail

matches

boolean matches(Environment env)

Apply the selector to the primitive and check if it matches.

Parameters:

env - the Environment. env.mc and env.layer are read-only when matching a selector. env.source is not needed. This method will set the matchingReferrers field of env as a side effect! Make sure to clear it before invoking this method.

Returns:

true, if the selector applies

getSubpart

Subpart getSubpart()

getRange

Range getRange()

optimizedBaseCheck

Selector optimizedBaseCheck()

Create an "optimized" copy of this selector that omits the base check. For the style source, the list of rules is preprocessed, such that there is a separate list of rules for nodes, ways, ... This means that the base check does not have to be performed for each rule, but only once for each primitive.

Returns:

a selector that is identical to this object, except the base of the "rightmost" selector is not checked