OGLFT::Face Class Reference

A face (aka font) used to render text with OpenGL. More...

#include <moOGLFT.h>

Inheritance diagram for OGLFT::Face:

Public Types
enum	HorizontalJustification { LEFT, ORIGIN, CENTER, RIGHT }
enum	VerticalJustification { BOTTOM, BASELINE, MIDDLE, TOP }
enum	GlyphCompileMode { COMPILE, IMMEDIATE }

Public Member Functions
	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
virtual void	setCharacterRotationZ (GLfloat character_rotation_z)=0
virtual GLfloat	characterRotationZ (void) const =0
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 double	height (void) const =0
virtual BBox	measure (unsigned char c)=0
virtual BBox	measure (const char *s)
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)

Protected Types
typedef std::map< FT_UInt, GLuint >	GlyphDLists
	Type of the cache of defined glyph to display list mapping. More...
typedef GlyphDLists::const_iterator	GDLCI
typedef GlyphDLists::iterator	GDLI

Protected Member Functions
virtual GLuint	compileGlyph (FT_Face face, FT_UInt glyph_index)=0
virtual void	renderGlyph (FT_Face face, FT_UInt glyph_index)=0
virtual void	setCharSize (void)=0
virtual void	clearCaches (void)=0
virtual void	setRotationOffset (void)=0

Protected Attributes
std::vector< FaceData >	faces_
bool	valid_
	Did a font load OK? More...
enum GlyphCompileMode	compile_mode_
	Glyph display list creation mode. More...
float	point_size_
	Nominal point size. More...
FT_UInt	resolution_
	Display resolution in pixels per inch. More...
bool	advance_
	Does rendering text affect the MODELVIEW matrix? More...
GLfloat	foreground_color_ [4]
GLfloat	background_color_ [4]
	Background color (what modes would use this?) More...
enum HorizontalJustification	horizontal_justification_
	PHIGS-like horizontal positioning of text. More...
enum VerticalJustification	vertical_justification_
	PHIGS-like vertical positioning of text. More...
GLfloat	string_rotation_
	Rotate an entire string in the Z plane. More...
FT_UInt	rotation_reference_glyph_
FT_Face	rotation_reference_face_
	The rotation reference character could be in any face. More...
GLfloat	rotation_offset_y_
GlyphDLists	glyph_dlists_
	Cache of defined glyph display lists. More...
DisplayLists	character_display_lists_

Detailed Description

A face (aka font) used to render text with OpenGL.

This is an abstract class, but it does define most the functions that you are likely to call to manipulate the rendering of the text.

Definition at line 293 of file moOGLFT.h.

Member Typedef Documentation

typedef GlyphDLists::const_iterator OGLFT::Face::GDLCI

protected

A convenience definition of the iterator over the glyph to display list map.

Definition at line 402 of file moOGLFT.h.

typedef GlyphDLists::iterator OGLFT::Face::GDLI

protected

A convenience definition of the iterator over the glyph to display list map.

Definition at line 406 of file moOGLFT.h.

typedef std::map< FT_UInt, GLuint > OGLFT::Face::GlyphDLists

protected

Type of the cache of defined glyph to display list mapping.

Definition at line 398 of file moOGLFT.h.

Member Enumeration Documentation

enum OGLFT::Face::GlyphCompileMode

Control how OpenGL display lists are created for individual glyphs. The default mode is to create display lists for each glyph as it is requested. Therefore, the Face drawing routines cannot themselves be called from within an open display list. In IMMEDIATE mode, cached glyphs will be drawn if available, otherwise the FreeType data for a glyph is re-rendered each time.

Enumerator
COMPILE	Compile new glyphs when seen for the first time.
IMMEDIATE	Do not create display lists for glyphs.

Definition at line 322 of file moOGLFT.h.

enum OGLFT::Face::HorizontalJustification

Thanks to the standard formerly known as PHIGS. Horizontal text justification constants.

Enumerator
LEFT	Left justified justification of text.
ORIGIN	Natural origin alignment of text (default)
CENTER	Center justified alignment of text.
RIGHT	Right justified alignment of text.

Definition at line 298 of file moOGLFT.h.

enum OGLFT::Face::VerticalJustification

Thanks to the standard formerly known as PHIGS. Vertical text justification constants.

Enumerator
BOTTOM	Descender alignment of text.
BASELINE	Baseline alignment of text (default)
MIDDLE	Centered alignment of text.
TOP	Ascender justification of text.

Definition at line 308 of file moOGLFT.h.

Constructor & Destructor Documentation

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

Construct a Face by loading a font from the given file.

Parameters

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.

Definition at line 65 of file moOGLFT.cpp.

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

Alternatively, the user may have already opened a face and just wants to draw with it. This is useful for Multiple Master fonts or combining multiple files to increase UNICODE point coverage.

Parameters

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.

Definition at line 91 of file moOGLFT.cpp.

OGLFT::Face::~Face ( void  )

virtual

Deleting a Face frees its FreeType face (and anything else it's styles have allocated).

Definition at line 147 of file moOGLFT.cpp.

Member Function Documentation

bool OGLFT::Face::addAuxiliaryFace

(

const char *

filename

)

Add another FT_Face to the OGLFT Face. Generally used to add more coverage of UNICODE points (at least that's the plan). This routine takes a filename and takes ownership of the FT_Face.

Parameters

filename

name of file containing font face data.

Returns

true if face was successfully added.

Definition at line 156 of file moOGLFT.cpp.

bool OGLFT::Face::addAuxiliaryFace

(

FT_Face

face

)

Add another FT_Face to the OGLFT Face. Generally used to add more coverage of UNICODE points (at least that's the plan). This routine takes an already open FT_Face. The user is responsible for clean up.

Parameters

face	open FreeType FT_Face

Returns

true if face was successfully added.

Definition at line 174 of file moOGLFT.cpp.

bool OGLFT::Face::advance ( void  ) const

inline

Returns

the advance value.

Definition at line 563 of file moOGLFT.h.

int OGLFT::Face::ascender ( void  )

inline

Returns

the nominal ascender from the face. This is in "notional" units.

Definition at line 1022 of file moOGLFT.h.

GLfloat OGLFT::Face::backgroundAlpha ( void  ) const

inline

Returns

the alpha component of the background color

Definition at line 681 of file moOGLFT.h.

GLfloat OGLFT::Face::backgroundBlue ( void  ) const

inline

Returns

the blue component of the background color

Definition at line 674 of file moOGLFT.h.

GLfloat OGLFT::Face::backgroundGreen ( void  ) const

inline

Returns

the green component of the background color

Definition at line 667 of file moOGLFT.h.

GLfloat OGLFT::Face::backgroundRed ( void  ) const

inline

Returns

the red component of the background color

Definition at line 660 of file moOGLFT.h.

DisplayLists& OGLFT::Face::characterDisplayLists ( void  )

inline

Returns

a reference to the array of character display lists. This is the live list as stored in the Face.

Definition at line 774 of file moOGLFT.h.

virtual GLfloat OGLFT::Face::characterRotationZ ( void  ) const

pure virtual

Returns

the character rotation in the Z direction.

Implemented in OGLFT::Texture, OGLFT::Raster, and OGLFT::Polygonal.

virtual void OGLFT::Face::clearCaches ( void  )

protectedpure virtual

The different styles have different caching needs (well, really only the texture style currently has more than the display list cache).

Implemented in OGLFT::Polygonal.

GLuint OGLFT::Face::compile

(

const char *

s

)

Compile a string into an OpenGL display list for later rendering. Essentially, the string is rendered at the origin of the current MODELVIEW. Note: no other display lists should be open when this routine is called. Also, the Face does not keep track of these lists, so you must delete them in order to recover the memory.

Parameters

s	the (latin1) string to compile.

Returns

the display list name for the string.

Definition at line 717 of file moOGLFT.cpp.

GLuint OGLFT::Face::compile

(

unsigned char

c

)

Compile a single character (glyph) into an OpenGL display list for later rendering. The Face does keep track of these display lists, so do not delete them.

Parameters

c	the (latin1) character to compile.

Returns

the display list name for the character.

Definition at line 776 of file moOGLFT.cpp.

virtual GLuint OGLFT::Face::compileGlyph ( FT_Face  face, FT_UInt  glyph_index  )

protectedpure virtual

Some styles, in particular the Texture, need specialized steps to compile a glyph into an OpenGL display list.

Parameters

face	the FT_Face containing the glyph.
glyph_index	the index of the glyph in face.

Returns

the display list of the compiled glyph.

enum GlyphCompileMode OGLFT::Face::compileMode ( void  ) const

inline

Returns

the current glyph compile mode.

Definition at line 490 of file moOGLFT.h.

int OGLFT::Face::descender ( void  )

inline

Returns

the nominal descender from the face. This is in "notional" units.

Definition at line 1031 of file moOGLFT.h.

void OGLFT::Face::draw

(

const char *

s

)

Draw a (latin1) string using the current MODELVIEW matrix. If advance is true, then the final glyph advance changes to the MODELVIEW matrix are left in place.

Parameters

s	the (latin1) string to draw.

Definition at line 841 of file moOGLFT.cpp.

void OGLFT::Face::draw

(

unsigned char

c

)

Draw the character using the current MODELVIEW matrix. Note that the MODELVIEW matrix is modified by the glyph advance. Draw a string if you don't want the MODELVIEW matrix changed.

Parameters

c	the (latin1) character to draw.

Definition at line 882 of file moOGLFT.cpp.

void OGLFT::Face::draw	(	GLfloat	x,
		GLfloat	y,
		unsigned char	c
	)

Draw the (latin1) character at the given 2D point. Note that the MODELVIEW matrix is modified by the glyph advance. Draw a string if you don't want the MODELVIEW matrix changed.

Parameters

x	the X position.
y	the Y position.
c	the (latin1) character to draw.

Definition at line 962 of file moOGLFT.cpp.

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

Draw the (latin1) character at the given 3D point. Note that the MODELVIEW matrix is modified by the glyph advance. Draw a string if you don't want the MODELVIEW matrix changed.

Parameters

x	the X position.
y	the Y position.
z	the Z position.
c	the (latin1) character to draw.

Definition at line 977 of file moOGLFT.cpp.

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

Draw a string at the given 2D point.

Parameters

x	the X position.
y	the Y position.
s	the (latin1) string to draw.

Definition at line 1022 of file moOGLFT.cpp.

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

Draw a string at the given 3D point.

Parameters

x	the X position.
y	the Y position.
z	the Z position.
s	the (latin1) string to draw.

Definition at line 1082 of file moOGLFT.cpp.

GLfloat OGLFT::Face::foregroundAlpha ( void  ) const

inline

Returns

the alpha component of the foreground color

Definition at line 622 of file moOGLFT.h.

GLfloat OGLFT::Face::foregroundBlue ( void  ) const

inline

Returns

the blue component of the foreground color

Definition at line 615 of file moOGLFT.h.

GLfloat OGLFT::Face::foregroundGreen ( void  ) const

inline

Returns

the green component of the foreground color

Definition at line 608 of file moOGLFT.h.

GLfloat OGLFT::Face::foregroundRed ( void  ) const

inline

Returns

the red component of the foreground color

Definition at line 601 of file moOGLFT.h.

virtual double OGLFT::Face::height ( void  ) const

pure virtual

Returns

the height (i.e., line spacing) at the current character size.

Implemented in OGLFT::Texture, OGLFT::Raster, and OGLFT::Polygonal.

enum HorizontalJustification OGLFT::Face::horizontalJustification ( void  ) const

inline

Returns

the horizontal justification.

Definition at line 735 of file moOGLFT.h.

bool OGLFT::Face::isValid ( void  ) const

inline

Let the user test to see if the font was loaded OK.

Returns

true if the FT_Face was successfully created.

Definition at line 449 of file moOGLFT.h.

virtual BBox OGLFT::Face::measure ( unsigned char  c )

pure virtual

Compute the bounding box info for a character.

Parameters

c	the (latin1) character to measure.

Returns

the bounding box of c.

Implemented in OGLFT::Texture, OGLFT::Raster, and OGLFT::Polygonal.

BBox OGLFT::Face::measure ( const char *  s )

virtual

Compute the bounding box info for a string.

Parameters

s	the (latin1) string to measure.

Returns

the bounding box of s.

Reimplemented in OGLFT::Texture, OGLFT::Raster, and OGLFT::Polygonal.

Definition at line 402 of file moOGLFT.cpp.

BBox OGLFT::Face::measureRaw ( const char *  s )

virtual

Compute the bounding box info for a string without conversion to modeling coordinates.

Parameters

s	the (latin1) string to measure.

Returns

the bounding box of s.

Definition at line 422 of file moOGLFT.cpp.

float OGLFT::Face::pointSize ( void  )

inline

Returns

the current point size.

Definition at line 521 of file moOGLFT.h.

virtual void OGLFT::Face::renderGlyph ( FT_Face  face, FT_UInt  glyph_index  )

protectedpure virtual

Each style implements its own glyph rendering routine.

Parameters

face	the FT_Face containing the glyph.
glyph_index	the index of the glyph in face.

Implemented in OGLFT::Filled.

FT_UInt OGLFT::Face::resolution ( void  )

inline

Returns

the current raster resolution.

Definition at line 541 of file moOGLFT.h.

void OGLFT::Face::setAdvance ( bool  advance )

inline

If advance is true, then the changes made to the MODELVIEW matrix to render a string are allowed to remain. Otherwise, the library pushes the current MODELVIEW matrix onto the matrix stack, renders the string and then pops it off again. Rendering a character always modifies the MODELVIEW matrix.

Parameters

advance

whether or not the MODELVIEW matrix should be left translated by the advancement of a rendered string.

Definition at line 555 of file moOGLFT.h.

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

This is the nominal background color of the glyphs. A lot of other things can alter what you actually see! Note that changing the background color invalidates the glyph cache.

Parameters

red	the red component of the background color.
green	the green component of the background color.
blue	the blue component of the background color.
alpha	the alpha component of the background color.

Definition at line 213 of file moOGLFT.cpp.

void OGLFT::Face::setBackgroundColor

(

const GLfloat

background_color[4]

)

This is the nominal background color of the glyphs. A lot of other things can alter what you actually see! Note that changing the background color invalidates the glyph cache.

Parameters

background_color

an array of 4 values corresponding to the red, green, blue and alpha components of the background color.

Definition at line 269 of file moOGLFT.cpp.

void OGLFT::Face::setCharacterDisplayLists ( const DisplayLists &  character_display_lists )

inline

Specify an OpenGL display list to be invoked before each character in a string. Face makes a copy of the argument. Pass an empty DisplayLists to disable this feature.

Parameters

character_display_lists

STL vector<GLuint> containing a display list to invoke before each glyph in a string is drawn.

Definition at line 765 of file moOGLFT.h.

void OGLFT::Face::setCharacterRotationReference

(

unsigned char

c

)

The z rotation angle needs a center. Nominate a character whose center is to be the center of rotation. By default, use "o".

Parameters

c	rotation reference character.

Definition at line 375 of file moOGLFT.cpp.

virtual void OGLFT::Face::setCharacterRotationZ ( GLfloat  character_rotation_z )

pure virtual

Set the individual character rotation in the Z direction.

Parameters

character_rotation_z

angle in degrees of z rotation.

Implemented in OGLFT::Texture, OGLFT::Raster, and OGLFT::Polygonal.

virtual void OGLFT::Face::setCharSize ( void  )

protectedpure virtual

There is a slight different between the way in which the polygonal and raster styles select the character size for FreeType to generate.

void OGLFT::Face::setCompileMode ( enum GlyphCompileMode  compile_mode )

inline

By default, each time a new character is seen, its glyph is rendered into a display list. This means that a display list cannot already be open (since OpenGL doesn't allow nested display list creation). Rendering can be set into immediate mode in which case glyphs are rendered from display lists if available, but are otherwise generated anew each time.

Parameters

compile_mode

the new compile mode.

Definition at line 482 of file moOGLFT.h.

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

This is the nominal color of the glyphs. A lot of other things can alter what you actually see! Note that changing the foreground color invalidates the glyph cache.

Parameters

red	the red component of the foreground color.
green	the green component of the foreground color.
blue	the blue component of the foreground color.
alpha	the alpha component of the foreground color.

Definition at line 232 of file moOGLFT.cpp.

void OGLFT::Face::setForegroundColor

(

const GLfloat

foreground_color[4]

)

This is the nominal color of the glyphs. A lot of other things can alter what you actually see! Note that changing the foreground color invalidates the glyph cache.

Parameters

foreground_color

an array of 4 values corresponding to the red, green, blue and alpha components of the foreground color.

Definition at line 251 of file moOGLFT.cpp.

void OGLFT::Face::setHorizontalJustification ( enum HorizontalJustification  horizontal_justification )

inline

Set the horizontal justification.

Parameters

horizontal_justification

the new horizontal justification.

Definition at line 726 of file moOGLFT.h.

void OGLFT::Face::setPointSize

(

float

point_size

)

For the rasterized styles (Monochrome, Grayscale, Translucent, Texture), glyphs are rendered at the pixel size given by:

point_size [pts] * / 72 [pts/in] * resolution [dots/in] = [dots].

For the polygon styles (Outline, Filled, Solid), the "nominal" size of the glyphs is:

point_size[pts] / 72 [pts/in] * resolution [dots/in] / units_per_EM [font unit/EM] = [dots * EM].

If the MODELVIEW and PROJECTION matrices are such that one screen pixel corresponds to one modeling unit, then polygonal Faces will be the same size as raster Faces.

Note that changing the point size after Face creation will invalidate the cache of OpenGL display lists and any other information which the individual styles have cached.

Parameters

point_size

the new point size in points (1/72-th inch).

Definition at line 185 of file moOGLFT.cpp.

void OGLFT::Face::setResolution

(

FT_UInt

resolution

)

For the rasterized styles (Monochrome, Grayscale, Translucent, Texture), the exact rendered size of the glyphs depends on the resolution of the display (as opposed to the polygon styles whose size is controlled by the viewing matrices). The Texture style is slightly different because the glyphs are texture-mapped onto an arbitrary rectangle; here, the resolution only controls how accurately the glyph is rendered.

Parameters

resolution

the resolution in DPI (dots per inch).

Definition at line 199 of file moOGLFT.cpp.

virtual void OGLFT::Face::setRotationOffset ( void  )

protectedpure virtual

The polygonal and raster styles compute different values for the Z rotation offset. (It's in integer pixels for the raster styles and in floating point pixels for the polygonal styles.)

void OGLFT::Face::setStringRotation

(

GLfloat

string_rotation

)

Rotate an entire string through the given angle (in the Z plane only). (Somewhat pointless for the vector styles since you can do mostly the same thing with the MODELVIEW transform, however, for what its worth, this routine uses the FreeType rotation function to compute the "proper" metrics for glyph advance.)

Parameters

string_rotation

angle in degrees of z rotation.

Definition at line 335 of file moOGLFT.cpp.

void OGLFT::Face::setVerticalJustification ( enum VerticalJustification  vertical_justification )

inline

Set the vertical justification.

Parameters

vertical_justification

the new vertical justification

Definition at line 744 of file moOGLFT.h.

GLfloat OGLFT::Face::stringRotation ( void  ) const

inline

Returns

the (Z plane) string rotation angle.

Definition at line 717 of file moOGLFT.h.

enum VerticalJustification OGLFT::Face::verticaljustification ( void  ) const

inline

Returns

the vertical justification.

Definition at line 753 of file moOGLFT.h.

Member Data Documentation

bool OGLFT::Face::advance_

protected

Does rendering text affect the MODELVIEW matrix?

Definition at line 365 of file moOGLFT.h.

GLfloat OGLFT::Face::background_color_[4]

protected

Background color (what modes would use this?)

Definition at line 375 of file moOGLFT.h.

DisplayLists OGLFT::Face::character_display_lists_

protected

The user can supply an array of display list which are invoked before each glyph is rendered.

Definition at line 413 of file moOGLFT.h.

enum GlyphCompileMode OGLFT::Face::compile_mode_

protected

Glyph display list creation mode.

Definition at line 356 of file moOGLFT.h.

std::vector< FaceData > OGLFT::Face::faces_

protected

The FreeType face - experimentally, this is now an array of faces so that we can handle a wider range of UNICODE points in case a face doesn't cover the points of interest.

Definition at line 350 of file moOGLFT.h.

GLfloat OGLFT::Face::foreground_color_[4]

protected

Foreground color (I really wanted to avoid this, but not really possible without state queries, which you can't put into display lists. Anyway, you'll be able to get even more fancy by passing in a function to map the color with, so why balk at this?)

Definition at line 372 of file moOGLFT.h.

GlyphDLists OGLFT::Face::glyph_dlists_

protected

Cache of defined glyph display lists.

Definition at line 409 of file moOGLFT.h.

enum HorizontalJustification OGLFT::Face::horizontal_justification_

protected

PHIGS-like horizontal positioning of text.

Definition at line 378 of file moOGLFT.h.

float OGLFT::Face::point_size_

protected

Nominal point size.

Definition at line 359 of file moOGLFT.h.

FT_UInt OGLFT::Face::resolution_

protected

Display resolution in pixels per inch.

Definition at line 362 of file moOGLFT.h.

GLfloat OGLFT::Face::rotation_offset_y_

protected

These are the translation offsets provided by the rotation reference character; for whom, we've discovered, only the Y position is relevant.

Definition at line 395 of file moOGLFT.h.

FT_Face OGLFT::Face::rotation_reference_face_

protected

The rotation reference character could be in any face.

Definition at line 391 of file moOGLFT.h.

FT_UInt OGLFT::Face::rotation_reference_glyph_

protected

Let the user decide which character to use as the rotation reference. Use "o" by default, I suppose.

Definition at line 388 of file moOGLFT.h.

GLfloat OGLFT::Face::string_rotation_

protected

Rotate an entire string in the Z plane.

Definition at line 384 of file moOGLFT.h.

bool OGLFT::Face::valid_

protected

Did a font load OK?

Definition at line 353 of file moOGLFT.h.

enum VerticalJustification OGLFT::Face::vertical_justification_

protected

PHIGS-like vertical positioning of text.

Definition at line 381 of file moOGLFT.h.

---

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

• libmoldeo/moOGLFT.h
• libmoldeo/moOGLFT.cpp