Maria::LabelRenderItem Class Reference

#include <MLabelRenderItem.h>

Classes
struct	AnchorData
struct	Background
struct	LabelInstance
struct	RenderBatch
struct	ScaleData
struct	VertexData

Public Member Functions
void	setGlyphsPoint (const STK::Vector2f &position, const GlyphRun &glyphs, bool outline, const double offsetX=0.0, const double offsetY=0.0, double angle=0.0, bool allowOverlap=false, bool drawBackground=false)
void	setGlyphsPath (const std::vector< STK::Vector2f > &line, bool continuedLine, const GlyphRun &glyphs, double stretch, bool allowOverlap)
void	setFont (const std::shared_ptr< STK::Font > &font)
void	addGlyphsPath (const std::vector< STK::Vector2f > &line, bool continuedLine, const GlyphRun &glyphs, bool allowOverlap)
void	addGlyphsPoint (const STK::Vector2f &position, const GlyphRun &glyphs, double offsetX, double offsetY, double angle, bool allowOverlap, bool drawBackground)
int	numGlyphs ()
	The total number of glyphs in this item.
void	setColor (const Maria::RGBA &color)
void	setOutlineColor (const Maria::RGBA &color)
void	setBackgroundColor (const Maria::RGBA &color)
bool	fixedRotation () const
void	setFixedRotation (bool fixedRotation)
void	preRender (const std::shared_ptr< RasterProjector > &vp)
void	renderLabels (const std::shared_ptr< STK::ShaderProgram > &shader, float opacity)
void	renderBackgrounds (STK::ShaderProgram &shader)
void	projectAnchors (const std::shared_ptr< RasterProjector > &tileRp, const std::shared_ptr< RasterProjector > &vp)
void	getPlacedCollisionFeatures (float xMin, float xMax, float yMin, float yMax, std::vector< PlacedCollisionFeature > &pcf)
void	updateCollisionGrid (std::shared_ptr< CollisionGrid > collisionGrid)
std::shared_ptr< STK::EllipseRender2D >	getDebugGraphics (const double pixelSize)
void	setGeoRect (const BasicGeoTypes::GeoRect &grc)
const BasicGeoTypes::GeoRect &	getGeoRect () const
bool	shouldRenderBackground () const

Static Public Attributes
static const int	MaxNumGlyphs = 65536/6

Detailed Description

LabelRenderItem - OpenGL vertex buffer data for a collection of labels. This collection of labels usually corresponds to one rendering batch and contains all labels with the same font and color parameters. Glyph attributes and indices are static between layout changes. Projection and collision updates stage separate buffers for upload during preRender().

Member Function Documentation

addGlyphsPath()

void LabelRenderItem::addGlyphsPath	(	const std::vector< STK::Vector2f > &	line,
		bool	continuedLine,
		const GlyphRun &	glyphs,
		bool	allowOverlap
	)

Add glyphs along a path. Add glyphs along the given path.

addGlyphsPoint()

void LabelRenderItem::addGlyphsPoint	(	const STK::Vector2f &	position,
		const GlyphRun &	glyphs,
		double	offsetX,
		double	offsetY,
		double	angle,
		bool	allowOverlap,
		bool	drawBackground
	)

Add glyphs at anchor point. Add glyphs at the given anchor point. A valid font cache must be set with the setFont() method first.

getPlacedCollisionFeatures()

void LabelRenderItem::getPlacedCollisionFeatures	(	float	xMin,
		float	xMax,
		float	yMin,
		float	yMax,
		std::vector< PlacedCollisionFeature > &	pcf
	)

Get all label collision boxes with placement scale within the given bounding box.

setFont()

void Maria::LabelRenderItem::setFont ( const std::shared_ptr< STK::Font > &  font )

inline

Set font for this label item node. All labels in the node will use this font. All glyphs must be registered in the corresponding font glyph cache, so this method must be called before adding any glyphs.

setGlyphsPath()

void Maria::LabelRenderItem::setGlyphsPath ( const std::vector< STK::Vector2f > &  line, bool  continuedLine, const GlyphRun &  glyphs, double  stretch, bool  allowOverlap  )

inline

Add glyphs along a path. Set glyphs along the given path. This method also sets the font according to the glyph run. The stretch parameter is a horizontal scale factor, default should be 1.0

setGlyphsPoint()

void Maria::LabelRenderItem::setGlyphsPoint ( const STK::Vector2f &  position, const GlyphRun &  glyphs, bool  outline, const double  offsetX = 0.0, const double  offsetY = 0.0, double  angle = 0.0, bool  allowOverlap = false, bool  drawBackground = false  )

inline

Add glyphs at anchor point. Set glyphs at the given anchor point. This method also sets the font according to the glyph run.

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

• Native/MariaNative/MLabelRendering/MLabelRenderItem.h
• Native/MariaNative/MLabelRendering/MLabelRenderItem.cpp