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Graphics Class Reference

The native part of a Java Graphics object. More...

Class diagram for Graphics:

Public Members
		Graphics ()
		default constructor.
	bool	lock ()
		EVERY GRAPHICAL OP LOCKS THE BView's LOOPER, WHICH IS A MAIN BOTTLENECK THAT WE SHOULD ADDRESS... More...
	void	unlock ()
	void	init ( KWnd* pWnd, rgb_color cfg, rgb_color cbg, BFont* fnt)
		called by graInitGraphics, Graphics must already be locked.
	void	restoreBrush ()
	void	selectNullBrush ()
	void	restorePen ()
	void	selectNullPen ()
	void	setFont ( BFont * fnt)
	void	setXORMode ( rgb_color xorClr)
	void	setPaintMode ()
	bool	setBackground ( rgb_color irgb)
	bool	setForeground ( rgb_color irgb)
	bool	fillRect ( int x, int y, int w, int h, rgb_color clr)
	void	drawRect ( int x, int y, int w, int h )
	void	drawLine ( int x1, int y1, int x2, int y2)
	void	drawText ( int x, int y, TCHAR* txt, int len)
	void	translate ( int x, int y)
	void	cleanUp ()
	void	setClip ( int x, int y, int w, int h, bool set)
		UNIMPLEMENTED.
	BRegion	oldreg
	BRegion	newreg
	KWnd*	wnd
	BPoint	cliOff
	char	xor
	rgb_color	xclr
	int	x0
	int	y0

Detailed Description

The native part of a Java Graphics object.

Unlike KWnd and friends, this class inherits directly from BView. Doing this we don't need an additional indirection on every call to the drawing functions.

See gra.cpp for the complete list of drawing functions.

Member Function Documentation

Graphics::Graphics ()

default constructor.

bool Graphics::lock () [inline]

EVERY GRAPHICAL OP LOCKS THE BView's LOOPER, WHICH IS A MAIN BOTTLENECK THAT WE SHOULD ADDRESS...

IMPROVEMENTS: Work to improve the graphics throughput: - a better locking scheme, with a superLock/superUnlock pair wrapping complete paint operations - asynchronous calls to the Toolkit (protecting the shared Toolkit data), in most graphics ops we are thread-safe on our own, so we don't need synchronized calls everywhere

void Graphics::unlock () [inline]

void Graphics::init (KWnd * pWnd, rgb_color cfg, rgb_color cbg, BFont * fnt) [inline]

called by graInitGraphics, Graphics must already be locked.

void Graphics::restoreBrush () [inline]

void Graphics::selectNullBrush () [inline]

void Graphics::restorePen () [inline]

void Graphics::selectNullPen () [inline]

void Graphics::setFont (BFont * fnt) [inline]

void Graphics::setXORMode (rgb_color xorClr) [inline]

void Graphics::setPaintMode () [inline]

bool Graphics::setBackground (rgb_color irgb) [inline]

bool Graphics::setForeground (rgb_color irgb) [inline]