Paint engine to be used in QGLWigets for a high performance image visualization. More...

#include <GLPaintEngine.h>

Inheritance diagram for icl::qt::GLPaintEngine:

Public Member Functions
	GLPaintEngine (QGLWidget *widget)
virtual	~GLPaintEngine ()
virtual void	color (float r, float g, float b, float a=255)
virtual void	fill (float r, float g, float b, float a=255)
virtual void	fontsize (float size)
virtual void	font (std::string name, float size=-1, PaintEngine::TextWeight weight=PaintEngine::Normal, PaintEngine::TextStyle style=PaintEngine::StyleNormal)
virtual void	linewidth (float w)
virtual void	pointsize (float s)
virtual void	line (const utils::Point32f &a, const utils::Point32f &b)
virtual void	point (const utils::Point32f &p)
virtual void	image (const utils::Rect32f &r, core::ImgBase *image, PaintEngine::AlignMode mode=PaintEngine::Justify, core::scalemode sm=core::interpolateNN)
virtual void	image (const utils::Rect32f &r, const QImage &image, PaintEngine::AlignMode mode=PaintEngine::Justify, core::scalemode sm=core::interpolateNN)
virtual void	rect (const utils::Rect32f &r)
virtual void	triangle (const utils::Point32f &a, const utils::Point32f &b, const utils::Point32f &c)
virtual void	quad (const utils::Point32f &a, const utils::Point32f &b, const utils::Point32f &c, const utils::Point32f &d)
virtual void	ellipse (const utils::Rect32f &r)
virtual void	text (const utils::Rect32f &r, const std::string text, PaintEngine::AlignMode mode=PaintEngine::Centered)
virtual void	bci (float brightness=0, float contrast=0, float intensity=0)
	brightness-constrast intensity adjustment (for images only)
virtual void	bciAuto ()
virtual void	getColor (float *piColor)
virtual void	getFill (float *piColor)
virtual float	getFontSize () const
virtual float	getLineWidth () const
virtual float	getPointSize () const
virtual icl::utils::Size	getSize ()
utils::Size	estimateTextBounds (const std::string &text) const
Protected Member Functions
void	setupRasterEngine (const utils::Rect32f &r, const utils::Size32f &s, PaintEngine::AlignMode mode)
void	setPackAlignment (core::depth d, int linewidth)
void	setupPixelTransfer (core::depth d, float brightness, float contrast, float intensity)
Protected Attributes
QGLWidget *	m_widget
float	m_linewidth
float	m_pointsize
float	m_linecolor [4]
float	m_fillcolor [4]
float	m_bci [3]
bool	m_bciauto
QFont	m_font
Private Attributes
core::ImgBase *	m_incompDepthBuf

Detailed Description

Paint engine to be used in QGLWigets for a high performance image visualization.

The GLPaintEngine provides a QPainter like interface for drawing 2D-OpenGL primitives directly into a OpenGL graphics context. It provides the following functionalities:

line and fill color state machniene
antialized Font rendering with implicit scaling if desired
drawing primitives using pixel coordinates (lines, points, rects, ellipese)
drawing QImages and ICL-img images directly without buffering, flipping or converting image data in software.
brightness / (contrast / intestity) adjustment (in hardware)

See also:: ICL/trunk/ICLQt/test/ICLDrawDemo for more details

Constructor & Destructor Documentation

icl::qt::GLPaintEngine::GLPaintEngine ( QGLWidget * widget )

virtual icl::qt::GLPaintEngine::~GLPaintEngine ( ) [virtual]

Member Function Documentation

virtual void icl::qt::GLPaintEngine::bci	(	float	brightness = `0`,
		float	contrast = `0`,
		float	intensity = `0`
	)		`[virtual]`

brightness-constrast intensity adjustment (for images only)

Implements icl::qt::PaintEngine.

virtual void icl::qt::GLPaintEngine::bciAuto ( ) [virtual]

Implements icl::qt::PaintEngine.

virtual void icl::qt::GLPaintEngine::color	(	float	r,
		float	g,
		float	b,
		float	a = `255`
	)		`[virtual]`

Implements icl::qt::PaintEngine.

virtual void icl::qt::GLPaintEngine::ellipse ( const utils::Rect32f & r ) [virtual]

Implements icl::qt::PaintEngine.

utils::Size icl::qt::GLPaintEngine::estimateTextBounds ( const std::string & text ) const

virtual void icl::qt::GLPaintEngine::fill	(	float	r,
		float	g,
		float	b,
		float	a = `255`
	)		`[virtual]`

Implements icl::qt::PaintEngine.

virtual void icl::qt::GLPaintEngine::font	(	std::string	name,
		float	size = `-1`,
		PaintEngine::TextWeight	weight = `PaintEngine::Normal`,
		PaintEngine::TextStyle	style = `PaintEngine::StyleNormal`
	)		`[virtual]`

Implements icl::qt::PaintEngine.

virtual void icl::qt::GLPaintEngine::fontsize ( float size ) [virtual]

Implements icl::qt::PaintEngine.

virtual void icl::qt::GLPaintEngine::getColor ( float * piColor ) [virtual]

Implements icl::qt::PaintEngine.

virtual void icl::qt::GLPaintEngine::getFill ( float * piColor ) [virtual]

Implements icl::qt::PaintEngine.

virtual float icl::qt::GLPaintEngine::getFontSize ( ) const [inline, virtual]

Implements icl::qt::PaintEngine.

virtual float icl::qt::GLPaintEngine::getLineWidth ( ) const [inline, virtual]

virtual float icl::qt::GLPaintEngine::getPointSize ( ) const [inline, virtual]

virtual icl::utils::Size icl::qt::GLPaintEngine::getSize ( ) [inline, virtual]

virtual void icl::qt::GLPaintEngine::image	(	const utils::Rect32f &	r,
		core::ImgBase *	image,
		PaintEngine::AlignMode	mode = `PaintEngine::Justify`,
		core::scalemode	sm = `core::interpolateNN`
	)		`[virtual]`

Implements icl::qt::PaintEngine.

virtual void icl::qt::GLPaintEngine::image	(	const utils::Rect32f &	r,
		const QImage &	image,
		PaintEngine::AlignMode	mode = `PaintEngine::Justify`,
		core::scalemode	sm = `core::interpolateNN`
	)		`[virtual]`

Implements icl::qt::PaintEngine.

virtual void icl::qt::GLPaintEngine::line	(	const utils::Point32f &	a,
		const utils::Point32f &	b
	)		`[virtual]`

Implements icl::qt::PaintEngine.

virtual void icl::qt::GLPaintEngine::linewidth ( float w ) [virtual]

Implements icl::qt::PaintEngine.

virtual void icl::qt::GLPaintEngine::point ( const utils::Point32f & p ) [virtual]

Implements icl::qt::PaintEngine.

virtual void icl::qt::GLPaintEngine::pointsize ( float s ) [virtual]

Implements icl::qt::PaintEngine.

virtual void icl::qt::GLPaintEngine::quad	(	const utils::Point32f &	a,
		const utils::Point32f &	b,
		const utils::Point32f &	c,
		const utils::Point32f &	d
	)		`[virtual]`

Implements icl::qt::PaintEngine.

virtual void icl::qt::GLPaintEngine::rect ( const utils::Rect32f & r ) [virtual]

Implements icl::qt::PaintEngine.

void icl::qt::GLPaintEngine::setPackAlignment	(	core::depth	d,
		int	linewidth
	)		`[protected]`

void icl::qt::GLPaintEngine::setupPixelTransfer	(	core::depth	d,
		float	brightness,
		float	contrast,
		float	intensity
	)		`[protected]`

void icl::qt::GLPaintEngine::setupRasterEngine	(	const utils::Rect32f &	r,
		const utils::Size32f &	s,
		PaintEngine::AlignMode	mode
	)		`[protected]`

virtual void icl::qt::GLPaintEngine::text	(	const utils::Rect32f &	r,
		const std::string	text,
		PaintEngine::AlignMode	mode = `PaintEngine::Centered`
	)		`[virtual]`