GLViewer_TexFont Class Reference

#include <GLViewer_Drawer.h>

Public Member Functions
	GLViewer_TexFont ()
	A default constructor. More...
	GLViewer_TexFont (QFont *theFont, int theSeparator=2, bool theIsResizeable=false, GLuint theMinMagFilter=GL_LINEAR)
	A constructor. More...
	~GLViewer_TexFont ()
	A destructor. More...
bool	generateTexture ()
	Generating font texture. More...
void	drawString (QString theStr, GLdouble theX=0.0, GLdouble theY=0.0, GLfloat theScale=1.0)
	Drawing string theStr in point with coords theX and theY. More...
int	getSeparator ()
	Returns separator between letters. More...
void	setSeparator (int theSeparator)
	Installing separator between letters. More...
int	getStringWidth (QString theString)
	Returns width of string in pixels. More...
int	getStringHeight ()
	Returns height of string in pixels. More...

Static Public Member Functions
static void	clearTextBases ()
	Clears all generated fonts. More...

Static Public Attributes
static QMap < GLViewer_TexFindId, GLViewer_TexIdStored >	TexFontBase
	Map for strorage generated texture fonts. More...
static QMap < GLViewer_TexFindId, GLuint >	BitmapFontCache
	Map for strorage generated bitmaps fonts. More...

Private Member Functions
void	init ()
	Initializes font parameters. More...

Private Attributes
int	myNbSymbols
	Number of characters in the font texture. More...
int *	myWidths
	Array of letter width. More...
int *	myPositions
	Array of letter positions in texture. More...
QFont	myQFont
	Pointer to base font. More...
GLuint	myTexFont
	Font texture ID. More...
int	myTexFontWidth
	Font texture width. More...
int	myTexFontHeight
	Font texture height. More...
int	mySeparator
	Separator between letters. More...
bool	myIsResizeable
	Flag controlling scalability of this texmapped font. More...
GLuint	myMinMagFilter
	Min/mag filter. More...
int	myFontHeight
	Font height. More...
int	myMaxRowWidth
	Diagnostic information. More...

Detailed Description

Font for GLViewer_Drawer, Drawing bitmap and texture fonts in GLViewer

Constructor & Destructor Documentation

GLViewer_TexFont::GLViewer_TexFont

(

)

Default constructor

References init(), myIsResizeable, myMinMagFilter, myQFont, and mySeparator.

GLViewer_TexFont::GLViewer_TexFont	(	QFont *	theFont,
		int	theSeparator = 2,
		bool	theIsResizeable = false,
		GLuint	theMinMagFilter = GL_LINEAR
	)

Constructor

Parameters

theFont	- a base font
theSeparator	- separator between letters
theIsResizeable	- specifies whether text drawn by this object can be scaled along with the scene
theMinMagFilter	- min/mag filter, affects text sharpness

References init(), myIsResizeable, myMinMagFilter, myQFont, and mySeparator.

GLViewer_TexFont::~GLViewer_TexFont

(

)

Destructor

References myPositions, and myWidths.

Member Function Documentation

void GLViewer_TexFont::clearTextBases ( )

static

Clears all generated fonts

References BitmapFontCache, and TexFontBase.

void GLViewer_TexFont::drawString	(	QString	theStr,
		GLdouble	theX = 0.0,
		GLdouble	theY = 0.0,
		GLfloat	theScale = 1.0
	)

Drawing string in viewer

Parameters

theStr	- string to be drawn
theX	- X position
theY	- Y position
theScale	- scale coefficient

References FirstSymbolNumber, modelMatrix, myFontHeight, myIsResizeable, myPositions, mySeparator, myTexFont, myTexFontHeight, myTexFontWidth, myWidths, TEX_ROW_GAP, and TEX_ROW_LEN.

bool GLViewer_TexFont::generateTexture

(

)

Generating font texture

References aTexture, FirstSymbolNumber, GLViewer_TexFindId::myFontFamily, myFontHeight, GLViewer_TexFindId::myIsBold, GLViewer_TexFindId::myIsItal, GLViewer_TexFindId::myIsUndl, myMaxRowWidth, myMinMagFilter, myNbSymbols, GLViewer_TexFindId::myPointSize, myPositions, myQFont, myTexFont, GLViewer_TexIdStored::myTexFontHeight, myTexFontHeight, GLViewer_TexIdStored::myTexFontId, GLViewer_TexIdStored::myTexFontWidth, myTexFontWidth, GLViewer_TexFindId::myViewPortId, NB_TEX_COMP, TEX_ROW_GAP, TEX_ROW_LEN, and TexFontBase.

int GLViewer_TexFont::getSeparator ( )

inline

int GLViewer_TexFont::getStringHeight

(

)

Returns

height of string in pixels

References myQFont.

int GLViewer_TexFont::getStringWidth

(

QString

theStr

)

Returns

width of string in pixels

References FirstSymbolNumber, mySeparator, and myWidths.

void GLViewer_TexFont::init ( )

private

Initializes font parameters

References FirstSymbolNumber, LastSymbolNumber, myFontHeight, myMaxRowWidth, myNbSymbols, myPositions, myQFont, myTexFontHeight, myTexFontWidth, myWidths, and TEX_ROW_LEN.

void GLViewer_TexFont::setSeparator ( int  theSeparator )

inline

Member Data Documentation

QMap< GLViewer_TexFindId, GLuint > GLViewer_TexFont::BitmapFontCache

static

int GLViewer_TexFont::myFontHeight

private

bool GLViewer_TexFont::myIsResizeable

private

int GLViewer_TexFont::myMaxRowWidth

private

GLuint GLViewer_TexFont::myMinMagFilter

private

int GLViewer_TexFont::myNbSymbols

private

int* GLViewer_TexFont::myPositions

private

QFont GLViewer_TexFont::myQFont

private

int GLViewer_TexFont::mySeparator

private

GLuint GLViewer_TexFont::myTexFont

private

int GLViewer_TexFont::myTexFontHeight

private

int GLViewer_TexFont::myTexFontWidth

private

int* GLViewer_TexFont::myWidths

private

QMap< GLViewer_TexFindId, GLViewer_TexIdStored > GLViewer_TexFont::TexFontBase

static

---

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

• src/GLViewer/GLViewer_Drawer.h
• src/GLViewer/GLViewer_Drawer.cxx