libmoldeo (Moldeo 1.0 Core)
1.0
libmoldeo es el conjunto de objetos y funciones, que permiten ejecutar las operaciones básicas de la plataforma Moldeo, y que compone su núcleo.
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Render text as texture mapped grayscale quads. Más...
#include <moOGLFT.h>
Métodos públicos | |
GrayscaleTexture (const char *filename, float point_size=12, FT_UInt resolution=100) | |
GrayscaleTexture (FT_Face face, float point_size=12, FT_UInt resolution=100) | |
~GrayscaleTexture (void) | |
Métodos públicos heredados desde OGLFT::Texture | |
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) |
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::Texture | |
typedef std::map< FT_UInt, TextureInfo > | GlyphTexObjs |
Type of the cache of defined glyph to texture objects mapping. Más... | |
typedef GlyphTexObjs::const_iterator | GTOCI |
typedef GlyphTexObjs::iterator | GTOI |
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::Texture | |
unsigned int | nearestPowerCeil (unsigned int a) |
Atributos protegidos heredados desde OGLFT::Texture | |
struct { | |
bool active_ | |
the other values.) Más... | |
GLfloat x_ | |
Angle of rotation in the X direction. Más... | |
GLfloat y_ | |
Angle of rotation in the Y direction. Más... | |
GLfloat z_ | |
Angle of rotation in the Z direction. Más... | |
} | character_rotation_ |
Angle of rotation of characters relative to text orientation. Más... | |
GlyphTexObjs | glyph_texobjs_ |
Cache of defined glyph texture objects. Más... | |
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_ |
Render text as texture mapped grayscale quads.
This style is similar to the Grayscale raster style, except instead of using glDrawPixels
to draw the raster image, the image is used as a texture map on a quad. If drawing is confined to the Z plane, then you will see no difference between this style and Grayscale. However, because the quad is a 3D object, it can be transformed by the usual modeling operations; so, texture mapped glyphs can be rotated in the X and Y directions as well as Z direction. Also, if the viewing (or modeling) transformation has a non-unity scale or shear, the glyphs will also be scaled or sheared (unlike the raster styles). Also, there is no problem with clipping glyphs which lie off the screen; texture mapped quads are properly clipped to the screen boundary.
If this is not convincing enough, the performance of texture mapped glyphs is generally as good as or better than the equivalent raster style (especially with hardware texture acceleration). However, they do consume more memory space.
Note: you must call
before drawing in order for textured glyphs to be rendered properly.
OGLFT::GrayscaleTexture::GrayscaleTexture | ( | const char * | filename, |
float | point_size = 12 , |
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FT_UInt | resolution = 100 |
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) |
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 3639 del archivo moOGLFT.cpp.
OGLFT::GrayscaleTexture::GrayscaleTexture | ( | FT_Face | face, |
float | point_size = 12 , |
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FT_UInt | resolution = 100 |
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) |
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 3644 del archivo moOGLFT.cpp.
OGLFT::GrayscaleTexture::~GrayscaleTexture | ( | void | ) |
The grayscale texture destructor doesn't really do anything.
Definición en la línea 3649 del archivo moOGLFT.cpp.