KOSMIndoorMap::MapCSSStyle Class Reference

#include <mapcssstyle.h>

Public Member Functions
	MapCSSStyle ()
	MapCSSStyle (const MapCSSStyle &)=delete
	MapCSSStyle (MapCSSStyle &&) noexcept
ClassSelectorKey	classKey (const char *className) const
void	compile (OSM::DataSet &dataSet)
void	evaluate (const MapCSSState &state, MapCSSResult &result) const
void	evaluateCanvas (const MapCSSState &state, MapCSSResult &result) const
void	initializeState (MapCSSState &state) const
bool	isEmpty () const
LayerSelectorKey	layerKey (const char *layerName) const
MapCSSStyle &	operator= (const MapCSSStyle &)=delete
MapCSSStyle &	operator= (MapCSSStyle &&) noexcept
void	write (QIODevice *out) const

Detailed Description

A parsed MapCSS style sheet.

See also

MapCSSParser::parse for how to obtain a valid instance

Definition at line 32 of file mapcssstyle.h.

Constructor & Destructor Documentation

MapCSSStyle()

MapCSSStyle::MapCSSStyle ( )

explicit

Creates an invalid/empty style.

Definition at line 20 of file mapcssstyle.cpp.

Member Function Documentation

classKey()

ClassSelectorKey MapCSSStyle::classKey ( const char * className ) const

nodiscard

Look up a class selector key for the given name, if it exists.

If no such key exists in the style sheet, an null key is returned. Use this for checking if a class is set on an evaluation result.

Definition at line 99 of file mapcssstyle.cpp.

compile()

void MapCSSStyle::compile

(

OSM::DataSet &

dataSet

)

Optimizes style sheet rules for application against dataSet.

This does resolve tag keys and is therefore mandatory when changing the data set.

Definition at line 33 of file mapcssstyle.cpp.

evaluate()

void MapCSSStyle::evaluate	(	const MapCSSState &	state,
		MapCSSResult &	result ) const

Evaluates the style sheet for a given state state (OSM element, view state, element state, etc).

The result is not returned but added to result for reusing allocated memory between evaluations.

Note

state has to be initialized using MapCSSStyle initializeState() for this to produce correct results.

Definition at line 75 of file mapcssstyle.cpp.

evaluateCanvas()

void MapCSSStyle::evaluateCanvas	(	const MapCSSState &	state,
		MapCSSResult &	result ) const

Evaluate canvas style rules.

Definition at line 84 of file mapcssstyle.cpp.

initializeState()

void MapCSSStyle::initializeState

(

MapCSSState &

state

)

const

Initializes the evaluation state.

Call this on a MapCSSState instance for each element being evaluated. The state object can be reused for multiple elements to reduce allocations. The state object can also be reused for expression evaluations on the style sheet evaluation result.

Definition at line 42 of file mapcssstyle.cpp.

isEmpty()

bool MapCSSStyle::isEmpty ( ) const

nodiscard

Returns true if this is a default-constructed or otherwise empty/invalud style.

Definition at line 28 of file mapcssstyle.cpp.

layerKey()

LayerSelectorKey MapCSSStyle::layerKey ( const char * layerName ) const

nodiscard

Look up a layer selector key for the given name, if it exists.

If no such key exists in the style sheet, an null key is returned. Use this for accessing specific result layers.

Definition at line 104 of file mapcssstyle.cpp.

write()

void MapCSSStyle::write

(

QIODevice *

out

)

const

Write this style as MapCSS to out.

Mainly used for testing.

Definition at line 92 of file mapcssstyle.cpp.

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The documentation for this class was generated from the following files:

• mapcssstyle.h
• mapcssstyle.cpp