Render text as a polygon outline. Más...

#include <moOGLFT.h>

Diagrama de herencias de OGLFT::Outline

Métodos públicos
	Outline (const char *filename, float point_size=12, FT_UInt resolution=100)

	Outline (FT_Face face, float point_size=12, FT_UInt resolution=100)

	~Outline (void)

Métodos públicos heredados desde OGLFT::Polygonal
	Polygonal (const char *filename, float point_size=12, FT_UInt resolution=100)

	Polygonal (FT_Face face, float point_size=12, FT_UInt resolution=100)

virtual	~Polygonal (void)

void	setTessellationSteps (unsigned int tessellation_steps)

unsigned int	tessellationSteps (void) const

void	setCharacterRotationX (GLfloat character_rotation_x)

void	setCharacterRotationY (GLfloat character_rotation_y)

void	setCharacterRotationZ (GLfloat character_rotation_z)

GLfloat	characterRotationX (void) const

GLfloat	characterRotationY (void) const

GLfloat	characterRotationZ (void) const

void	setColorTess (ColorTess *color_tess)

ColorTess *	colorTess (void) const

void	setTextureTess (TextureTess *texture_tess)

TextureTess *	textureTess (void) const

double	height (void) const

BBox	measure (unsigned char c)

BBox	measure (const char *s)

Métodos públicos heredados desde OGLFT::Face
	Face (const char *filename, float point_size=12, FT_UInt resolution=100)

	Face (FT_Face face, float point_size=12, FT_UInt resolution=100)

virtual	~Face (void)

bool	isValid (void) const

bool	addAuxiliaryFace (const char *filename)

bool	addAuxiliaryFace (FT_Face face)

void	setCompileMode (enum GlyphCompileMode compile_mode)

enum GlyphCompileMode	compileMode (void) const

void	setPointSize (float point_size)

float	pointSize (void)

void	setResolution (FT_UInt resolution)

FT_UInt	resolution (void)

void	setAdvance (bool advance)

bool	advance (void) const

void	setForegroundColor (GLfloat red=0.0, GLfloat green=0.0, GLfloat blue=0.0, GLfloat alpha=1.0)

void	setForegroundColor (const GLfloat foreground_color[4])

GLfloat	foregroundRed (void) const

GLfloat	foregroundGreen (void) const

GLfloat	foregroundBlue (void) const

GLfloat	foregroundAlpha (void) const

void	setBackgroundColor (GLfloat red=1.0, GLfloat green=1.0, GLfloat blue=1.0, GLfloat alpha=0.0)

void	setBackgroundColor (const GLfloat background_color[4])

GLfloat	backgroundRed (void) const

GLfloat	backgroundGreen (void) const

GLfloat	backgroundBlue (void) const

GLfloat	backgroundAlpha (void) const

void	setCharacterRotationReference (unsigned char c)

void	setStringRotation (GLfloat string_rotation)

GLfloat	stringRotation (void) const

void	setHorizontalJustification (enum HorizontalJustification horizontal_justification)

enum HorizontalJustification	horizontalJustification (void) const

void	setVerticalJustification (enum VerticalJustification vertical_justification)

enum VerticalJustification	verticaljustification (void) const

void	setCharacterDisplayLists (const DisplayLists &character_display_lists)

DisplayLists &	characterDisplayLists (void)

virtual BBox	measureRaw (const char *s)

GLuint	compile (const char *s)

GLuint	compile (unsigned char c)

void	draw (const char *s)

void	draw (unsigned char c)

void	draw (GLfloat x, GLfloat y, unsigned char c)

void	draw (GLfloat x, GLfloat y, GLfloat z, unsigned char c)

void	draw (GLfloat x, GLfloat y, const char *s)

void	draw (GLfloat x, GLfloat y, GLfloat z, const char *s)

int	ascender (void)

int	descender (void)

Otros miembros heredados
Tipos públicos heredados desde OGLFT::Face
enum	HorizontalJustification { LEFT, ORIGIN, CENTER, RIGHT }

enum	VerticalJustification { BOTTOM, BASELINE, MIDDLE, TOP }

enum	GlyphCompileMode { COMPILE, IMMEDIATE }

Tipos protegidos heredados desde OGLFT::Polygonal
typedef std::list< VertexInfo * >	VertexInfoList
	Normally, we will consider a list of vertices. Más...

typedef VertexInfoList::const_iterator	VILCI
	A convenience definition of the iterator over the list of vertices. Más...

typedef VertexInfoList::iterator	VILI
	A convenience definition of the iterator over the list of vertices. Más...

Tipos protegidos heredados desde OGLFT::Face
typedef std::map< FT_UInt, GLuint >	GlyphDLists
	Type of the cache of defined glyph to display list mapping. Más...

typedef GlyphDLists::const_iterator	GDLCI

typedef GlyphDLists::iterator	GDLI

Métodos protegidos heredados desde OGLFT::Polygonal
void	clearCaches (void)

Atributos protegidos heredados desde OGLFT::Polygonal
struct {
bool active_

GLfloat x_

GLfloat y_

GLfloat z_

}	character_rotation_
	Angle of rotation of characters relative to text orientation. Más...

unsigned int	tessellation_steps_

double	delta_

double	delta2_

double	delta3_

double	vector_scale_

FT_Outline_Funcs	interface_
	Callbacks for FreeType glyph decomposition into outlines. Más...

VertexInfo	last_vertex_

VertexInfoList	vertices_

bool	contour_open_

ColorTess *	color_tess_

TextureTess *	texture_tess_

Atributos protegidos heredados desde OGLFT::Face
std::vector< FaceData >	faces_

bool	valid_
	Did a font load OK? Más...

enum GlyphCompileMode	compile_mode_
	Glyph display list creation mode. Más...

float	point_size_
	Nominal point size. Más...

FT_UInt	resolution_
	Display resolution in pixels per inch. Más...

bool	advance_
	Does rendering text affect the MODELVIEW matrix? Más...

GLfloat	foreground_color_ [4]

GLfloat	background_color_ [4]
	Background color (what modes would use this?) Más...

enum HorizontalJustification	horizontal_justification_
	PHIGS-like horizontal positioning of text. Más...

enum VerticalJustification	vertical_justification_
	PHIGS-like vertical positioning of text. Más...

GLfloat	string_rotation_
	Rotate an entire string in the Z plane. Más...

FT_UInt	rotation_reference_glyph_

FT_Face	rotation_reference_face_
	The rotation reference character could be in any face. Más...

GLfloat	rotation_offset_y_

GlyphDLists	glyph_dlists_
	Cache of defined glyph display lists. Más...

DisplayLists	character_display_lists_

Atributos protegidos estáticos heredados desde OGLFT::Polygonal
static const unsigned int	DEFAULT_TESSELLATION_STEPS = 4

Descripción detallada

Render text as a polygon outline.

Text is drawn as an outline of each glyph. The contours are extracted from the font file through FreeType. FreeType is used to scale the contours to a given size. Usually the outline is drawn in the foreground color, however, you can specify a ColorTess object to provide a color for each vertex individually. You can also use the per-glyph display list functionality to alter the attributes of each glyph.

The only complexity to this style is selecting the point size. Since the outlines are drawn as a polygon, they are subject to the MODELVIEW transformation. The point size is nominally chosen to be the same as a raster image generated at the given resolution. Some experimentation with point size and resolution may be necessary to achieve the desired results.

Definición en la línea 1429 del archivo moOGLFT.h.

Documentación del constructor y destructor

OGLFT::Outline::Outline	(	const char *	filename,
		float	point_size = `12`,
		FT_UInt	resolution = `100`
	)

Parámetros

filename	the filename which contains the font face.
point_size	the initial point size of the font to generate. A point is essentially 1/72th of an inch. Defaults to 12.
resolution	the pixel density of the display in dots per inch (DPI). Defaults to 100 DPI.

Definición en la línea 2238 del archivo moOGLFT.cpp.

OGLFT::Outline::Outline	(	FT_Face	face,
		float	point_size = `12`,
		FT_UInt	resolution = `100`
	)

Parámetros

face	open FreeType FT_Face.
point_size	the initial point size of the font to generate. A point is essentially 1/72th of an inch. Defaults to 12.
resolution	the pixel density of the display in dots per inch (DPI). Defaults to 100 DPI.

Definición en la línea 2246 del archivo moOGLFT.cpp.

OGLFT::Outline::~Outline ( void )

The destructor doesn't do anything in particular.

Definición en la línea 2262 del archivo moOGLFT.cpp.

La documentación para esta clase fue generada a partir de los siguientes ficheros:

libmoldeo/moOGLFT.h
libmoldeo/moOGLFT.cpp

Métodos públicos

Otros miembros heredados

Descripción detallada

Documentación del constructor y destructor