#include <JXGC.h>

Public Member Functions
	JXGC (JXDisplay *display, const Drawable drawable)

	~JXGC ()

JXDisplay *	GetDisplay () const

bool	GetClipping (JPoint offset, Region region, JXImageMask **pixmap)

void	SetClipRect (const JRect &clipRect)

void	SetClipRegion (const Region clipRegion)

void	SetClipPixmap (const JPoint &offset, Pixmap pixmap)

void	SetClipPixmap (const JPoint &offset, const JXImageMask &mask)

void	ClearClipping ()

void	SetDrawingColor (const JColorID color)

void	SetDrawingFunction (const int function)

void	SetLineWidth (const JSize width)

void	DrawDashedLines (const bool on)

void	SetDashList (const JArray< JSize > &dashList, const JSize offset=0)

void	SetSubwindowMode (const int mode)

void	DrawPoint (const Drawable drawable, const JCoordinate x, const JCoordinate y) const

void	DrawLine (const Drawable drawable, const JCoordinate x1, const JCoordinate y1, const JCoordinate x2, const JCoordinate y2) const

void	DrawLines (const Drawable drawable, const JSize ptCount, XPoint xpt[]) const

void	DrawRect (const Drawable drawable, const JCoordinate x, const JCoordinate y, const JCoordinate width, const JCoordinate height) const

void	FillRect (const Drawable drawable, const JCoordinate x, const JCoordinate y, const JCoordinate width, const JCoordinate height) const

void	DrawArc (const Drawable drawable, const JCoordinate x, const JCoordinate y, const JCoordinate width, const JCoordinate height, const JFloat startAngle, const JFloat deltaAngle) const

void	FillArc (const Drawable drawable, const JCoordinate x, const JCoordinate y, const JCoordinate width, const JCoordinate height, const JFloat startAngle, const JFloat deltaAngle) const

void	FillPolygon (const Drawable drawable, const JSize ptCount, XPoint xpt[]) const

void	SetFont (const JFontID id)

void	DrawString (const Drawable drawable, XftDraw *fdrawable, const JCoordinate x, const JCoordinate y, const JString &str) const

void	CopyPixels (const Drawable source, const JCoordinate src_x, const JCoordinate src_y, const JCoordinate width, const JCoordinate height, const Drawable dest, const JCoordinate dest_x, const JCoordinate dest_y) const

void	CopyImage (const XImage *source, const JCoordinate src_x, const JCoordinate src_y, const JCoordinate width, const JCoordinate height, const Drawable dest, const JCoordinate dest_x, const JCoordinate dest_y) const

Detailed Description

Represents a single X Graphics Context.  We don't provide a convertion
to GC because that would break our buffering of GC settings. (color, etc)
This buffering is important for reducing the number of server calls.

If we are depth 1, drawing in any color other than JXImageMask::kPixelOff
produces "pixel on".  Refer to JXImageMask::ColorToBit().

This class was not designed to be a base class.

Constructor & Destructor Documentation

◆ JXGC()

JXGC::JXGC	(	JXDisplay *	display,
		const Drawable	drawable
	)

◆ ~JXGC()

JXGC::~JXGC ( )

Member Function Documentation

◆ ClearClipping()

void JXGC::ClearClipping ( )

◆ CopyImage()

void JXGC::CopyImage	(	const XImage *	source,
		const JCoordinate	src_x,
		const JCoordinate	src_y,
		const JCoordinate	width,
		const JCoordinate	height,
		const Drawable	dest,
		const JCoordinate	dest_x,
		const JCoordinate	dest_y
	)		const

◆ CopyPixels()

void JXGC::CopyPixels	(	const Drawable	source,
		const JCoordinate	src_x,
		const JCoordinate	src_y,
		const JCoordinate	width,
		const JCoordinate	height,
		const Drawable	dest,
		const JCoordinate	dest_x,
		const JCoordinate	dest_y
	)		const

◆ DrawArc()

void JXGC::DrawArc	(	const Drawable	drawable,
		const JCoordinate	x,
		const JCoordinate	y,
		const JCoordinate	width,
		const JCoordinate	height,
		const JFloat	startAngle,
		const JFloat	deltaAngle
	)		const

◆ DrawDashedLines()

void JXGC::DrawDashedLines ( const bool on )

◆ DrawLine()

void JXGC::DrawLine	(	const Drawable	drawable,
		const JCoordinate	x1,
		const JCoordinate	y1,
		const JCoordinate	x2,
		const JCoordinate	y2
	)		const

◆ DrawLines()

void JXGC::DrawLines	(	const Drawable	drawable,
		const JSize	ptCount,
		XPoint	xpt[]
	)		const

xpt[0] must be the same as xpt[ptCount-1] in order to close the polygon.

◆ DrawPoint()

void JXGC::DrawPoint	(	const Drawable	drawable,
		const JCoordinate	x,
		const JCoordinate	y
	)		const

◆ DrawRect()

void JXGC::DrawRect	(	const Drawable	drawable,
		const JCoordinate	x,
		const JCoordinate	y,
		const JCoordinate	width,
		const JCoordinate	height
	)		const

◆ DrawString()

void JXGC::DrawString	(	const Drawable	drawable,
		XftDraw *	fdrawable,
		const JCoordinate	origX,
		const JCoordinate	y,
		const JString &	str
	)		const

If the string is too long to be sent to the server in one chunk, we split it up.

◆ FillArc()

void JXGC::FillArc	(	const Drawable	drawable,
		const JCoordinate	x,
		const JCoordinate	y,
		const JCoordinate	width,
		const JCoordinate	height,
		const JFloat	startAngle,
		const JFloat	deltaAngle
	)		const

◆ FillPolygon()

void JXGC::FillPolygon	(	const Drawable	drawable,
		const JSize	ptCount,
		XPoint	xpt[]
	)		const

◆ FillRect()

void JXGC::FillRect	(	const Drawable	drawable,
		const JCoordinate	x,
		const JCoordinate	y,
		const JCoordinate	width,
		const JCoordinate	height
	)		const

◆ GetClipping()

bool JXGC::GetClipping	(	JPoint *	offset,
		Region *	region,
		JXImageMask **	pixmap
	)

Returns true if we have any clipping set. *region is created, if necessary. *pixmap is set to the current pixmap, if any. Thus, the caller owns the resulting region, but we own the resulting pixmap.

◆ GetDisplay()

JXDisplay * JXGC::GetDisplay ( ) const

inline

◆ SetClipPixmap() [1/2]

void JXGC::SetClipPixmap	(	const JPoint &	offset,
		const JXImageMask &	mask
	)

◆ SetClipPixmap() [2/2]

void JXGC::SetClipPixmap	(	const JPoint &	offset,
		Pixmap	pixmap
	)

We take ownership of the pixmap that is passed in.

◆ SetClipRect()

void JXGC::SetClipRect ( const JRect & clipRect )

◆ SetClipRegion()

void JXGC::SetClipRegion ( const Region clipRegion )

We do not take ownership of the clipRegion that is passed in.

◆ SetDashList()

void JXGC::SetDashList	(	const JArray< JSize > &	dashList,
		const JSize	offset = `0`
	)

◆ SetDrawingColor()

void JXGC::SetDrawingColor ( const JColorID color )

◆ SetDrawingFunction()

void JXGC::SetDrawingFunction ( const int function )

◆ SetFont()

void JXGC::SetFont ( const JFontID id )