#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() [1/2]

GLViewer_TexFont::GLViewer_TexFont ( )

A default constructor.

Default constructor

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

◆ GLViewer_TexFont() [2/2]

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

A constructor.

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::~GLViewer_TexFont ( )

A destructor.

Destructor

References myPositions, and myWidths.

Member Function Documentation

◆ clearTextBases()

void GLViewer_TexFont::clearTextBases ( )

static

Clears all generated fonts.

Clears all generated fonts

References BitmapFontCache, and TexFontBase.

◆ drawString()

void GLViewer_TexFont::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.

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, TEX_ROW_LEN, and theScale.

◆ generateTexture()

bool GLViewer_TexFont::generateTexture ( )

Generating font texture.

Generating font texture

<TODO: conversion from "size_t" to "long"

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, myTexFontHeight, myTexFontWidth, GLViewer_TexFindId::myViewPortId, NB_TEX_COMP, TEX_ROW_GAP, TEX_ROW_LEN, and TexFontBase.

◆ getSeparator()

int GLViewer_TexFont::getSeparator ( )

inline

Returns separator between letters.

◆ getStringHeight()

int GLViewer_TexFont::getStringHeight ( )

Returns height of string in pixels.

Returns: height of string in pixels

References myQFont.

◆ getStringWidth()

int GLViewer_TexFont::getStringWidth ( QString theStr )

Returns width of string in pixels.

Returns: width of string in pixels

References FirstSymbolNumber, mySeparator, and myWidths.

◆ init()

void GLViewer_TexFont::init ( )

private

Initializes font parameters.

Initializes font parameters

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

◆ setSeparator()

void GLViewer_TexFont::setSeparator ( int theSeparator )

inline

Installing separator between letters.

Member Data Documentation

◆ BitmapFontCache

QMap< GLViewer_TexFindId, GLuint > GLViewer_TexFont::BitmapFontCache

static

Map for strorage generated bitmaps fonts.

◆ myFontHeight

int GLViewer_TexFont::myFontHeight

private

Font height.

◆ myIsResizeable

bool GLViewer_TexFont::myIsResizeable

private

Flag controlling scalability of this texmapped font.

◆ myMaxRowWidth

int GLViewer_TexFont::myMaxRowWidth

private

Diagnostic information.

◆ myMinMagFilter

GLuint GLViewer_TexFont::myMinMagFilter

private

Min/mag filter.

◆ myNbSymbols

int GLViewer_TexFont::myNbSymbols

private

Number of characters in the font texture.

◆ myPositions

int* GLViewer_TexFont::myPositions

private

Array of letter positions in texture.

◆ myQFont

QFont GLViewer_TexFont::myQFont

private

Pointer to base font.

◆ mySeparator

int GLViewer_TexFont::mySeparator

private

Separator between letters.

◆ myTexFont

GLuint GLViewer_TexFont::myTexFont

private

Font texture ID.

◆ myTexFontHeight

int GLViewer_TexFont::myTexFontHeight

private

Font texture height.

◆ myTexFontWidth

int GLViewer_TexFont::myTexFontWidth

private

Font texture width.

◆ myWidths

int* GLViewer_TexFont::myWidths

private

Array of letter width.

◆ TexFontBase

QMap< GLViewer_TexFindId, GLViewer_TexIdStored > GLViewer_TexFont::TexFontBase

static

Map for strorage generated texture fonts.

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

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

Public Member Functions

Static Public Member Functions

Static Public Attributes

Private Member Functions

Private Attributes

Detailed Description

Constructor & Destructor Documentation

◆ GLViewer_TexFont() [1/2]

◆ GLViewer_TexFont() [2/2]

◆ ~GLViewer_TexFont()

Member Function Documentation

◆ clearTextBases()

◆ drawString()

◆ generateTexture()

◆ getSeparator()

◆ getStringHeight()

◆ getStringWidth()

◆ init()

◆ setSeparator()

Member Data Documentation

◆ BitmapFontCache

◆ myFontHeight

◆ myIsResizeable

◆ myMaxRowWidth

◆ myMinMagFilter

◆ myNbSymbols

◆ myPositions

◆ myQFont

◆ mySeparator

◆ myTexFont

◆ myTexFontHeight

◆ myTexFontWidth

◆ myWidths

◆ TexFontBase