#include <GLViewer_Drawer.h>

Inheritance diagram for GLViewer_Drawer:

Public Types
enum	{ GLText_Center = 0, GLText_Left, GLText_Right, GLText_Top, GLText_Bottom }
	Text position relatively object. More...

Public Member Functions
	GLViewer_Drawer ()
	A constructor. More...

virtual	~GLViewer_Drawer ()
	A destructor. More...

virtual void	create (float xScale, float yScale, bool onlyUpdate)=0
	Main method which drawing object in GLViewer. More...

virtual void	addObject (GLViewer_Object *theObject)
	Adds object to drawer display list. More...

virtual void	clear ()
	Clears drawer display list. More...

QString	getObjectType () const
	Returns object type (needs for dynamic search of right drawer ) More...

int	getPriority () const
	Returns object priority. More...

void	setAntialiasing (const bool on)
	The function enables and disables antialiasing in Open GL (for points, lines and polygons). More...

virtual bool	translateToHPGL (QFile &hFile, GLViewer_CoordSystem aViewerCS, GLViewer_CoordSystem aHPGLCS)
	A function translate object in to HPGL file on disk. More...

virtual bool	translateToPS (QFile &hFile, GLViewer_CoordSystem aViewerCS, GLViewer_CoordSystem aPSCS)
	A function translate object in to PostScript file on disk. More...

void	drawTexture (GLuint texture, GLint size, GLfloat x, GLfloat y)
	Draw square texture. More...

void	drawTexture (GLuint texture, GLint x_size, GLint y_size, GLfloat x, GLfloat y)
	Draw texture. More...

void	drawTexturePart (GLuint texture, GLfloat x_ratio, GLfloat y_ratio, GLfloat x_size, GLfloat y_size, GLfloat x, GLfloat y, GLfloat scale=0)
	Draw texture part. More...

void	drawText (const QString &text, GLfloat xPos, GLfloat yPos, const QColor &color, QFont *aFont, int theSeparator, DisplayTextFormat=DTF_BITMAP)
	Draw text string. More...

void	drawGLText (QString text, float x, float y, int hPosition=GLText_Center, int vPosition=GLText_Center, QColor color=Qt::black, bool smallFont=false)
	Draw text string. More...

void	setFont (const QFont &font)
	Sets a default font to be used by drawGLText method. More...

QFont	font () const
	Returns a default font used by drawGLText method. More...

void	setTextFormat (const DisplayTextFormat format)
	Sets a default text displaying format to be used by drawGLText method. More...

DisplayTextFormat	textFormat () const
	Returns a default text displaying format used by drawGLText method. More...

void	setTextScale (const GLfloat factor)
	Sets a text string displaying scale factor (used only with text format DTF_TEXTURE_SCALABLE) More...

GLfloat	textScale () const
	Returns a text string displaying scale factor. More...

GLViewer_Rect	textRect (const QString &) const
	Returns a rectangle of text (without viewer scale) More...

Static Public Member Functions
static void	destroyAllTextures ()
	Clears all generated textures. More...

static GLuint	loadTexture (const QString &fileName, GLint x_size=0, GLint y_size=0, GLint *t_size=0)
	Loads texture from file. More...

static void	drawRectangle (GLViewer_Rect *theRect, QColor=Qt::black)
	Draw rectangle with predefined color. More...

Protected Member Functions
virtual void	drawText (GLViewer_Object *theObject)
	Draw object text. More...

Static Protected Member Functions
static void	drawRectangle (GLViewer_Rect *, GLfloat, GLfloat=0, QColor=Qt::black, bool=false, QColor=Qt::white)
	Draw basic primitives: rectangle, contour, polygon, vertex, cross, arrow. More...

static void	drawContour (GLViewer_Rect *, QColor, GLfloat, GLushort, bool)

static void	drawContour (const GLViewer_PntList &, QColor, GLfloat)

static void	drawPolygon (GLViewer_Rect *, QColor, GLushort, bool)

static void	drawPolygon (const GLViewer_PntList &, QColor)

static void	drawVertex (GLfloat, GLfloat, QColor)

static void	drawCross (GLfloat, GLfloat, QColor)

static void	drawArrow (const GLfloat red, const GLfloat green, const GLfloat blue, GLfloat, GLfloat, GLfloat, GLfloat, GLfloat, GLfloat, GLfloat, GLboolean=GL_FALSE)

Protected Attributes
float	myXScale
	X Scale factor. More...

float	myYScale
	Y scale factor. More...

QList< GLViewer_Object * >	myObjects
	List of objects. More...

GLuint	myTextList
	List generated textures. More...

QString	myObjectType
	Type of supporting object. More...

int	myPriority
	Dislay priority. More...

QFont	myFont
	Default font for drawGLText() method. More...

DisplayTextFormat	myTextFormat
	Default text displaying format for drawGLText() method. More...

GLfloat	myTextScale
	Scale factor for text string draw, by default 0.125 (used only with text format DTF_TEXTURE_SCALABLE) More...

Detailed Description

Drawer for GLViewer_Objects. Drawer creates only one times per one type of object

Member Enumeration Documentation

anonymous enum

Enumerator
GLText_Center
GLText_Left
GLText_Right
GLText_Top
GLText_Bottom

Constructor & Destructor Documentation

GLViewer_Drawer::GLViewer_Drawer ( )

Default constructor

References DTF_BITMAP, myObjects, myObjectType, myPriority, myTextFormat, myTextList, myTextScale, myXScale, and myYScale.

GLViewer_Drawer::~GLViewer_Drawer ( )

virtual

Destructor

References myObjects, and myTextList.

Member Function Documentation

virtual void GLViewer_Drawer::addObject ( GLViewer_Object * theObject )

inlinevirtual

virtual void GLViewer_Drawer::clear ( )

inlinevirtual

virtual void GLViewer_Drawer::create	(	float	xScale,
		float	yScale,
		bool	onlyUpdate
	)

pure virtual

Implemented in GLViewer_TextDrawer, GLViewer_PolylineDrawer, and GLViewer_MarkerDrawer.

void GLViewer_Drawer::destroyAllTextures ( )

static

Clears all generated textures

References GLViewer_TexFont::TexFontBase.

void GLViewer_Drawer::drawArrow	(	const GLfloat	red,
		const GLfloat	green,
		const GLfloat	blue,
		GLfloat	lineWidth,
		GLfloat	staff,
		GLfloat	length,
		GLfloat	width,
		GLfloat	x,
		GLfloat	y,
		GLfloat	angle,
		GLboolean	filled = `GL_FALSE`
	)

staticprotected

Draws arrow

Parameters

red,green,blue	- components of color
lineWidth	- width of line
staff	-
length	- length of arrow
width	- width of arrow
x	- x position
y	- y position
angle	- angle of arrow
filled	- drawn as filled

void GLViewer_Drawer::drawContour	(	GLViewer_Rect *	rect,
		QColor	color,
		GLfloat	lineWidth,
		GLushort	pattern,
		bool	isStripe
	)

staticprotected

Draws rectangular contour

Parameters

rect	- instance of rectangle
color	- color of primitive
lineWidth	- width of line
pattern	- pattern of line
isStripe	- enables line stipple

References GLViewer_Rect::bottom(), GLViewer_Rect::left(), GLViewer_Rect::right(), and GLViewer_Rect::top().

void GLViewer_Drawer::drawContour	(	const GLViewer_PntList &	pntList,
		QColor	color,
		GLfloat	lineWidth
	)

staticprotected

Draws contour

Parameters

pntList	- list of points
color	- color of contour
lineWidth	- width of line

void GLViewer_Drawer::drawCross	(	GLfloat	x,
		GLfloat	y,
		QColor	color
	)

staticprotected

Draws cross

Parameters

x	- x position
y	- y position
color	- color of cross

void GLViewer_Drawer::drawGLText	(	QString	text,
		float	x,
		float	y,
		int	hPosition = `GLText_Center`,
		int	vPosition = `GLText_Center`,
		QColor	color = `Qt::black`,
		bool	smallFont = `false`
	)

Parameters

text	- the text string
x	- x coord
y	- y coord
hPosition	- horizontal alignment
vPosition	- vertical alignment
color	- text color
smallFont	- font format

Draw text

Parameters

text	- the text string
x	- x coord
y	- y coord
hPosition	- horizontal alignment
vPosition	- vertical alignment
color	- text color
smallFont	- font format

References drawText(), DTF_TEXTURE_SCALABLE, GLText_Bottom, GLText_Center, GLText_Left, GLText_Right, GLText_Top, myFont, myTextFormat, myXScale, myYScale, and textScale().

void GLViewer_Drawer::drawPolygon	(	GLViewer_Rect *	rect,
		QColor	color,
		GLushort	pattern,
		bool	isStripe
	)

staticprotected

Draws rectangle

Parameters

rect	- instance of rectangle
color	- color of polygon
pattern	- pattern of line
isStripe	- enables line stipple

References GLViewer_Rect::bottom(), GLViewer_Rect::left(), GLViewer_Rect::right(), and GLViewer_Rect::top().

void GLViewer_Drawer::drawPolygon	(	const GLViewer_PntList &	pntList,
		QColor	color
	)

staticprotected

Draws polygon

Parameters

pntList	- list of points
color	- color of polygon

void GLViewer_Drawer::drawRectangle	(	GLViewer_Rect *	rect,
		QColor	color = `Qt::black`
	)

static

Draws rectangle

Parameters

rect	- instance of primitive
color	- color of primitive

References GLViewer_Rect::bottom(), GLViewer_Rect::left(), GLViewer_Rect::right(), and GLViewer_Rect::top().

void GLViewer_Drawer::drawRectangle	(	GLViewer_Rect *	rect,
		GLfloat	lineWidth,
		GLfloat	gap = `0`,
		QColor	color = `Qt::black`,
		bool	filled = `false`,
		QColor	fillingColor = `Qt::white`
	)

staticprotected

Draws rectangle

Parameters

rect	- instance of primitive
lineWidth	- width of line
gap	- gap of rectangle
color	- color of primitive
filled	- if it is true, then rectangle will be drawn filled with color "fillingColor"
fillingColor	- color of filling

References GLViewer_Rect::bottom(), GLViewer_Rect::left(), GLViewer_Rect::right(), and GLViewer_Rect::top().

void GLViewer_Drawer::drawText	(	const QString &	text,
		GLfloat	xPos,
		GLfloat	yPos,
		const QColor &	color,
		QFont *	theFont,
		int	theSeparator,
		DisplayTextFormat	theFormat = `DTF_BITMAP`
	)

Parameters

text	- the text string
xPos	- x coord
yPos	- y coord
color	- text color
aFont	- base font of text
theSeparator	- letter separator
DisplayTextFormat	- text format

Draw text

Parameters

text	- text to be drawn
xPos	- x position
yPos	- y position
color	- color of text
theFont	- font of text
theSeparator	- letter separator
theFormat	- text format (by default DTF_BITMAP)

References displayListBase(), GLViewer_TexFont::drawString(), DTF_BITMAP, DTF_TEXTURE_SCALABLE, GLViewer_TexFont::generateTexture(), and textScale().

void GLViewer_Drawer::drawText ( GLViewer_Object * theObject )

protectedvirtual

Draws object-text

References drawText(), GLViewer_Text::getColor(), GLViewer_Text::getDisplayTextFormat(), GLViewer_Text::getFont(), GLViewer_Object::getGLText(), GLViewer_Text::getPosition(), GLViewer_Text::getSeparator(), and GLViewer_Text::getText().

void GLViewer_Drawer::drawTexture	(	GLuint	texture,
		GLint	size,
		GLfloat	x,
		GLfloat	y
	)

Parameters

texture	- the texture ID
size	- the size of square texture
x	- x coord
y	- y coord

Draw square texture

Parameters

texture	- the texture ID
size	- the size of square texture
x	- x coord
y	- y coord

void GLViewer_Drawer::drawTexture	(	GLuint	texture,
		GLint	x_size,
		GLint	y_size,
		GLfloat	x,
		GLfloat	y
	)

Parameters

texture	- the texture ID
x_size	- the horizontal size of texture
y_size	- the vertical size of texture
x	- x coord
y	- y coord

Draw texture

Parameters

texture	- the texture ID
x_size	- the horizontal size of texture
y_size	- the vertical size of texture
x	- x coord
y	- y coord

References drawTexturePart().

void GLViewer_Drawer::drawTexturePart	(	GLuint	texture,
		GLfloat	x_ratio,
		GLfloat	y_ratio,
		GLfloat	x_size,
		GLfloat	y_size,
		GLfloat	x,
		GLfloat	y,
		GLfloat	scale = `0`
	)

Parameters

texture	- the texture ID
x_ratio	- the horizontal ratio of texture part
y_ratio	- the vertical ratio of texture part
x_size	- the horizontal size of texture
y_size	- the vertical size of texture
x	- x coord
y	- y coord
scale	- common scale factor ( if = 0, use drawer scales )

Draw texture part

Parameters

texture	- the texture ID
x_ratio	- the horizontal ratio of texture part
y_ratio	- the vertical ratio of texture part
x_size	- the horizontal size of texture
y_size	- the vertical size of texture
x	- x coord
y	- y coord
scale	- common scale factor ( if = 0, use drawer scales )

References myXScale, and myYScale.

void GLViewer_Drawer::drawVertex	(	GLfloat	x,
		GLfloat	y,
		QColor	color
	)

staticprotected

Draws vertex

Parameters

x	- x position
y	- y position
color	- color of vertex

QFont GLViewer_Drawer::font ( ) const

inline

QString GLViewer_Drawer::getObjectType ( ) const

inline

int GLViewer_Drawer::getPriority ( ) const

inline

GLuint GLViewer_Drawer::loadTexture	(	const QString &	fileName,
		GLint *	x_size = `0`,
		GLint *	y_size = `0`,
		GLint *	t_size = `0`
	)

static

Parameters

fileName	- the name of texture file
x_size	- the horizontal size of picture ( less or equal texture horizontal size )
y_size	- the vertical size of picture ( less or equal texture vertical size )
t_size	- the size of texture ( texture vertical size equals texture horizontal size )

Loads texture from file

Parameters

fileName	- the name of texture file
x_size	- the horizontal size of picture ( less or equal texture horizontal size )
y_size	- the vertical size of picture ( less or equal texture vertical size )
t_size	- the size of texture ( texture vertical size equals texture horizontal size )

void GLViewer_Drawer::setAntialiasing ( const bool on )

Enables and disables antialiasing in Open GL (for points, lines and polygons).

Parameters

on	- if it is true, antialiasing is enabled

void GLViewer_Drawer::setFont ( const QFont & font )

inline

Parameters

font	- the default font

void GLViewer_Drawer::setTextFormat ( const DisplayTextFormat format )

inline

Parameters

format - the default text displaying format

void GLViewer_Drawer::setTextScale ( const GLfloat factor )

inline

Parameters

factor - scale factor

DisplayTextFormat GLViewer_Drawer::textFormat ( ) const

inline

GLViewer_Rect GLViewer_Drawer::textRect ( const QString & text ) const

Returns: a rectangle of text (without viewer scale)

References DTF_TEXTURE_SCALABLE, myFont, myTextFormat, and textScale().

GLfloat GLViewer_Drawer::textScale ( ) const

inline

bool GLViewer_Drawer::translateToHPGL	(	QFile &	hFile,
		GLViewer_CoordSystem *	aViewerCS,
		GLViewer_CoordSystem *	aHPGLCS
	)

virtual

Parameters

hFile	the name of PostScript file chosen by user
aViewerCS	the GLViewer_CoordSystem of window
aHPGLCS	the GLViewer_CoordSystem of PostScript page

Saves object to file with format of HPGL

Parameters

hFile	- file
aViewerCS	- viewer co-ordinate system
aHPGLCS	- paper co-ordinate system

References myObjects.

bool GLViewer_Drawer::translateToPS	(	QFile &	hFile,
		GLViewer_CoordSystem *	aViewerCS,
		GLViewer_CoordSystem *	aPSCS
	)

virtual

Parameters

hFile	the name of PostScript file chosen by user
aViewerCS	the GLViewer_CoordSystem of window
aPSCS	the GLViewer_CoordSystem of PostScript page

Saves object to file with format of PostScript

Parameters

hFile	- file
aViewerCS	- viewer co-ordinate system
aPSCS	- paper co-ordinate system

References myObjects.

Member Data Documentation

QFont GLViewer_Drawer::myFont

protected

QList<GLViewer_Object*> GLViewer_Drawer::myObjects

protected

QString GLViewer_Drawer::myObjectType

protected

int GLViewer_Drawer::myPriority

protected

DisplayTextFormat GLViewer_Drawer::myTextFormat

protected

GLuint GLViewer_Drawer::myTextList

protected

GLfloat GLViewer_Drawer::myTextScale

protected

float GLViewer_Drawer::myXScale

protected

float GLViewer_Drawer::myYScale

protected

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

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

Public Types

Public Member Functions

Static Public Member Functions

Protected Member Functions

Static Protected Member Functions

Protected Attributes

Detailed Description

Member Enumeration Documentation

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation