This is the base class of the texture style. More...

#include <moOGLFT.h>

Inheritance diagram for OGLFT::Texture:

Classes
struct	TextureInfo

Public Member Functions
	Texture (const char *filename, float point_size=12, FT_UInt resolution=100)

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

virtual	~Texture (void)

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

double	height (void) const

BBox	measure (unsigned char c)

BBox	measure (const char *s)

Public Member Functions inherited from 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)

Protected Types
typedef std::map< FT_UInt, TextureInfo >	GlyphTexObjs
	Type of the cache of defined glyph to texture objects mapping. More...

typedef GlyphTexObjs::const_iterator	GTOCI

typedef GlyphTexObjs::iterator	GTOI

Protected Types inherited from OGLFT::Face
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
unsigned int	nearestPowerCeil (unsigned int a)

virtual void	bindTexture (FT_Face face, FT_UInt glyph_index)=0

Protected Attributes
struct {
bool active_
	the other values.) More...

GLfloat x_
	Angle of rotation in the X direction. More...

GLfloat y_
	Angle of rotation in the Y direction. More...

GLfloat z_
	Angle of rotation in the Z direction. More...

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

GlyphTexObjs	glyph_texobjs_
	Cache of defined glyph texture objects. More...

Protected Attributes inherited from OGLFT::Face
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_

Additional Inherited Members
Public Types inherited from OGLFT::Face
enum	HorizontalJustification { LEFT, ORIGIN, CENTER, RIGHT }

enum	VerticalJustification { BOTTOM, BASELINE, MIDDLE, TOP }

enum	GlyphCompileMode { COMPILE, IMMEDIATE }

Detailed Description

This is the base class of the texture style.

Definition at line 1950 of file moOGLFT.h.

Member Typedef Documentation

typedef std::map< FT_UInt, TextureInfo > OGLFT::Texture::GlyphTexObjs

protected

Type of the cache of defined glyph to texture objects mapping.

Definition at line 1988 of file moOGLFT.h.

typedef GlyphTexObjs::const_iterator OGLFT::Texture::GTOCI

protected

A convenience definition of the iterator over the glyph to texture object map.

Definition at line 1992 of file moOGLFT.h.

typedef GlyphTexObjs::iterator OGLFT::Texture::GTOI

protected

A convenience definition of the iterator over the glyph to texture object map.

Definition at line 1996 of file moOGLFT.h.

Constructor & Destructor Documentation

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

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 3210 of file moOGLFT.cpp.

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

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 3218 of file moOGLFT.cpp.

OGLFT::Texture::~Texture ( void )

virtual

The texture destructor doesn't really do anything.

Definition at line 3236 of file moOGLFT.cpp.

Member Function Documentation

virtual void OGLFT::Texture::bindTexture	(	FT_Face	face,
		FT_UInt	glyph_index
	)

protectedpure virtual

This is all that distinguishes the various texture styles. Each subclass defines this method as appropriate. Once the texture is bound, it is rendered the same in all cases.

Parameters

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

GLfloat OGLFT::Texture::characterRotationX ( void ) const

inline

Returns: the character rotation in the X direction.

Definition at line 2046 of file moOGLFT.h.

GLfloat OGLFT::Texture::characterRotationY ( void ) const

inline

Returns: the character rotation in the Y direction.

Definition at line 2054 of file moOGLFT.h.

GLfloat OGLFT::Texture::characterRotationZ ( void ) const

inlinevirtual

Returns: the character rotation in the Z direction.

Implements OGLFT::Face.

Definition at line 2062 of file moOGLFT.h.

double OGLFT::Texture::height ( void ) const

virtual

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

Implements OGLFT::Face.

Definition at line 3352 of file moOGLFT.cpp.

BBox OGLFT::Texture::measure ( unsigned char c )

virtual

Implement measuring a character in a texture face.

Parameters

c	the (latin1) character to measure

Returns: the bounding box of c.

Implements OGLFT::Face.

Definition at line 3316 of file moOGLFT.cpp.

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

inlinevirtual

Measure a string of characters. Note: currently, this merely calls Face's measure routine.

Parameters

s	string of (latin1) characters to measure

Returns: the bounding box of s.

Reimplemented from OGLFT::Face.

Definition at line 2092 of file moOGLFT.h.

unsigned int OGLFT::Texture::nearestPowerCeil ( unsigned int a )

protected

OpenGL texture maps have to be a power of 2 in width and height (including apparently 1 = 2**0 ). This function returns the next higher power of 2 of the argument. If the argument is already a power of 2, you just get that back.

Parameters

a	width or height of an image.

Returns: value of a rounded to nearest, higher power of 2.

Definition at line 3505 of file moOGLFT.cpp.

void OGLFT::Texture::setCharacterRotationX ( GLfloat character_rotation_x )

Set the individual character rotation in the X direction.

Parameters

character_rotation_x angle in degrees of X rotation.

Definition at line 3243 of file moOGLFT.cpp.

void OGLFT::Texture::setCharacterRotationY ( GLfloat character_rotation_y )

Set the individual character rotation in the Y direction.

Parameters

character_rotation_y angle in degrees of Y rotation.

Definition at line 3258 of file moOGLFT.cpp.

void OGLFT::Texture::setCharacterRotationZ ( GLfloat character_rotation_z )

virtual

Set the individual character rotation in the Z direction.

Parameters

character_rotation_z angle in degrees of Z rotation.

Implements OGLFT::Face.

Definition at line 3273 of file moOGLFT.cpp.

Member Data Documentation

bool OGLFT::Texture::active_

the other values.)

Is character rotation non-zero? (faster than checking all

Definition at line 1956 of file moOGLFT.h.

struct { ... } OGLFT::Texture::character_rotation_

Angle of rotation of characters relative to text orientation.

GlyphTexObjs OGLFT::Texture::glyph_texobjs_

protected

Cache of defined glyph texture objects.

Definition at line 1999 of file moOGLFT.h.

GLfloat OGLFT::Texture::x_

Angle of rotation in the X direction.

Definition at line 1958 of file moOGLFT.h.

GLfloat OGLFT::Texture::y_

Angle of rotation in the Y direction.

Definition at line 1958 of file moOGLFT.h.

GLfloat OGLFT::Texture::z_

Angle of rotation in the Z direction.

Definition at line 1958 of file moOGLFT.h.

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

libmoldeo/moOGLFT.h
libmoldeo/moOGLFT.cpp

Classes

Public Member Functions

Protected Types

Protected Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

Member Typedef Documentation

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation