org.openstreetmap.josm.gui.mappaint

Class Environment

java.lang.Object

org.openstreetmap.josm.gui.mappaint.Environment

public class Environment
extends java.lang.Object

Environment is a data object to provide access to various "global" parameters. It is used during processing of MapCSS rules and for the generation of style elements.

Field Summary

Fields

Modifier and Type	Field and Description
IPrimitive	child The same for parent selector.
java.util.Set<IPrimitive>	children Set of matched children filled by ContainsFinder and CrossingFinder, null if nothing matched
private Condition.Context	context
java.lang.Integer	count count of nodes in parent way or members in parent relation.
static java.lang.String	DEFAULT_LAYER The name of the default layer.
java.lang.Integer	index index of node in parent way or member in parent relation.
java.lang.String	layer The current MapCSS layer
MultiCascade	mc The cascades that are currently evaluated
IPrimitive	osm The primitive that is currently evaluated
IPrimitive	parent If not null, this is the matching parent object if a condition or an expression is evaluated in a Selector.LinkSelector (within a child selector)
StyleSource	source The style source that is evaluated

Constructor Summary

Constructors

Constructor and Description
Environment() Creates a new uninitialized environment.
Environment(Environment other) Creates a clone of the environment other.
Environment(IPrimitive osm) Creates a new environment.
Environment(IPrimitive osm, MultiCascade mc, java.lang.String layer, StyleSource source) Creates a new environment.

Method Summary

Modifier and Type	Method and Description
void	clearSelectorMatchingInformation() Clears all matching context information
Cascade	getCascade(java.lang.String layer) Gets the current cascade for a given layer
Condition.Context	getContext() Replies the current context.
java.lang.String	getRole() Gets the role of the matching primitive in the relation
boolean	hasParentRelation() Determines if this environment has a relation as parent.
boolean	isLinkContext() Determines if the context of this environment is Condition.Context.LINK.
Environment	withChild(IPrimitive child) Creates a clone of this environment, with the specified child.
Environment	withChildAndIndexAndLinkContext(IPrimitive child, int index, int count) Creates a clone of this environment, with the specified child, index, and context set to Condition.Context.LINK.
Environment	withContext(Condition.Context context) Creates a clone of this environment, with the specified Condition.Context.
Environment	withIndex(int index, int count) Creates a clone of this environment, with the specified index.
Environment	withLinkContext() Creates a clone of this environment, with context set to Condition.Context.LINK.
Environment	withParent(IPrimitive parent) Creates a clone of this environment, with the specified parent.
Environment	withParentAndIndexAndLinkContext(IPrimitive parent, int index, int count) Creates a clone of this environment, with the specified parent, index, and context set to Condition.Context.LINK.
Environment	withPrimitive(IPrimitive osm) Creates a clone of this environment, with the specified primitive.

Methods inherited from class java.lang.Object

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

Field Detail

osm

public IPrimitive osm

The primitive that is currently evaluated

mc

public MultiCascade mc

The cascades that are currently evaluated

layer

public java.lang.String layer

The current MapCSS layer

source

public StyleSource source

The style source that is evaluated

context

private Condition.Context context

DEFAULT_LAYER

public static final java.lang.String DEFAULT_LAYER

The name of the default layer. It is used if no layer is specified in the MapCSS rule

See Also:

Constant Field Values

parent

public IPrimitive parent

If not null, this is the matching parent object if a condition or an expression is evaluated in a Selector.LinkSelector (within a child selector)

child

public IPrimitive child

The same for parent selector. Only one of the 2 fields (parent or child) is not null in any environment.

index

public java.lang.Integer index

index of node in parent way or member in parent relation. Must be != null in LINK context.

count

public java.lang.Integer count

count of nodes in parent way or members in parent relation. Must be != null in LINK context.

children

public java.util.Set<IPrimitive> children

Set of matched children filled by ContainsFinder and CrossingFinder, null if nothing matched

Constructor Detail

Environment

public Environment()

Creates a new uninitialized environment.

Environment

public Environment(IPrimitive osm)

Creates a new environment.

Parameters:

osm - OSM primitive

Since:

8415, 13810 (signature)

Environment

public Environment(IPrimitive osm,
                   MultiCascade mc,
                   java.lang.String layer,
                   StyleSource source)

Creates a new environment.

Parameters:

osm - OSM primitive

mc - multi cascade

layer - layer

source - style source

Since:

13810 (signature)

Environment

public Environment(Environment other)

Creates a clone of the environment other.

Parameters:

other - the other environment. Must not be null.

Throws:

java.lang.IllegalArgumentException - if param is null

Method Detail

withPrimitive

public Environment withPrimitive(IPrimitive osm)

Creates a clone of this environment, with the specified primitive.

Parameters:

osm - OSM primitive

Returns:

A clone of this environment, with the specified primitive

Since:

13810 (signature)

See Also:

osm

withParent

public Environment withParent(IPrimitive parent)

Creates a clone of this environment, with the specified parent.

Parameters:

parent - the matching parent object

Returns:

A clone of this environment, with the specified parent

Since:

13810 (signature)

See Also:

parent

withParentAndIndexAndLinkContext

public Environment withParentAndIndexAndLinkContext(IPrimitive parent,
                                                    int index,
                                                    int count)

Creates a clone of this environment, with the specified parent, index, and context set to Condition.Context.LINK.

Parameters:

parent - the matching parent object

index - index of node in parent way or member in parent relation

count - count of nodes in parent way or members in parent relation

Returns:

A clone of this environment, with the specified parent, index, and context set to Condition.Context.LINK

Since:

6175, 13810 (signature)

See Also:

parent, index

withChild

public Environment withChild(IPrimitive child)

Creates a clone of this environment, with the specified child.

Parameters:

child - the matching child object

Returns:

A clone of this environment, with the specified child

Since:

13810 (signature)

See Also:

child

withChildAndIndexAndLinkContext

public Environment withChildAndIndexAndLinkContext(IPrimitive child,
                                                   int index,
                                                   int count)

Creates a clone of this environment, with the specified child, index, and context set to Condition.Context.LINK.

Parameters:

child - the matching child object

index - index of node in parent way or member in parent relation

count - count of nodes in parent way or members in parent relation

Returns:

A clone of this environment, with the specified child, index, and context set to Context#LINK

Since:

6175, 13810 (signature)

See Also:

child, index

withIndex

public Environment withIndex(int index,
                             int count)

Creates a clone of this environment, with the specified index.

Parameters:

index - index of node in parent way or member in parent relation

count - count of nodes in parent way or members in parent relation

Returns:

A clone of this environment, with the specified index

See Also:

index

withContext

public Environment withContext(Condition.Context context)

Creates a clone of this environment, with the specified Condition.Context.

Parameters:

context - context

Returns:

A clone of this environment, with the specified Context

withLinkContext

public Environment withLinkContext()

Creates a clone of this environment, with context set to Condition.Context.LINK.

Returns:

A clone of this environment, with context set to Context#LINK

isLinkContext

public boolean isLinkContext()

Determines if the context of this environment is Condition.Context.LINK.

Returns:

true if the context of this environment is Context#LINK, false otherwise

hasParentRelation

public boolean hasParentRelation()

Determines if this environment has a relation as parent.

Returns:

true if this environment has a relation as parent, false otherwise

See Also:

parent

getContext

public Condition.Context getContext()

Replies the current context.

Returns:

the current context

getRole

public java.lang.String getRole()

Gets the role of the matching primitive in the relation

Returns:

The role

clearSelectorMatchingInformation

public void clearSelectorMatchingInformation()

Clears all matching context information

getCascade

public Cascade getCascade(java.lang.String layer)

Gets the current cascade for a given layer

Parameters:

layer - The layer to use, null to use the layer of the Environment

Returns:

The cascade