#include <qwt_painter.h>

Static Public Member Functions
static bool	deviceClipping ()
static const QRect &	deviceClipRect ()
static void	drawColorBar (QPainter *painter, const QwtColorMap &, const QwtDoubleInterval &, const QwtScaleMap &, Qt::Orientation, const QRect &)
static void	drawEllipse (QPainter *, const QRect &)
static void	drawFocusRect (QPainter , QWidget )
static void	drawFocusRect (QPainter , QWidget , const QRect &)
static void	drawLine (QPainter *, int x1, int y1, int x2, int y2)
static void	drawLine (QPainter *, const QPoint &p1, const QPoint &p2)
static void	drawPie (QPainter *, const QRect &r, int a, int alen)
static void	drawPoint (QPainter *, int x, int y)
static void	drawPolygon (QPainter *, const QwtPolygon &pa)
static void	drawPolyline (QPainter *, const QwtPolygon &pa)
static void	drawRect (QPainter *, int x, int y, int w, int h)
static void	drawRect (QPainter *, const QRect &rect)
static void	drawRoundFrame (QPainter *, const QRect &, int width, const QPalette &, bool sunken)
static void	drawSimpleRichText (QPainter *, const QRect &, int flags, QTextDocument &)
static void	drawText (QPainter *, int x, int y, const QString &)
static void	drawText (QPainter *, const QPoint &, const QString &)
static void	drawText (QPainter *, int x, int y, int w, int h, int flags, const QString &)
static void	drawText (QPainter *, const QRect &, int flags, const QString &)
static void	fillRect (QPainter *, const QRect &, const QBrush &)
static const QwtMetricsMap &	metricsMap ()
static void	resetMetricsMap ()
static QPen	scaledPen (const QPen &)
static void	setClipRect (QPainter *, const QRect &)
static void	setDeviceClipping (bool)
static void	setMetricsMap (const QPaintDevice layout, const QPaintDevice device)
static void	setMetricsMap (const QwtMetricsMap &)

Detailed Description

A collection of QPainter workarounds.

1) Clipping to coordinate system limits (Qt3 only)

On X11 pixel coordinates are stored in shorts. Qt produces overruns when mapping QCOORDS to shorts.

2) Scaling to device metrics

QPainter scales fonts, line and fill patterns to the metrics of the paint device. Other values like the geometries of rects, points remain device independend. To enable a device independent widget implementation, QwtPainter adds scaling of these geometries. (Unfortunately QPainter::scale scales both types of paintings, so the objects of the first type would be scaled twice).

Member Function Documentation

bool QwtPainter::deviceClipping ( )

inlinestatic

Returns whether device clipping is enabled. On X11 the default is enabled, otherwise it is disabled.

See also:: QwtPainter::setDeviceClipping()

const QRect & QwtPainter::deviceClipRect ( )

static

Returns rect for device clipping

See also:: QwtPainter::setDeviceClipping()

void QwtPainter::drawEllipse	(	QPainter *	painter,
		const QRect &	rect
	)

static

Wrapper for QPainter::drawEllipse()

void QwtPainter::drawLine	(	QPainter *	painter,
		int	x1,
		int	y1,
		int	x2,
		int	y2
	)

static

Wrapper for QPainter::drawLine()

void QwtPainter::drawPie	(	QPainter *	painter,
		const QRect &	rect,
		int	a,
		int	alen
	)

static

Wrapper for QPainter::drawPie()

void QwtPainter::drawPoint	(	QPainter *	painter,
		int	x,
		int	y
	)

static

Wrapper for QPainter::drawPoint()

void QwtPainter::drawPolygon	(	QPainter *	painter,
		const QwtPolygon &	pa
	)

static

Wrapper for QPainter::drawPolygon()

void QwtPainter::drawPolyline	(	QPainter *	painter,
		const QwtPolygon &	pa
	)

static

Wrapper for QPainter::drawPolyline()

void QwtPainter::drawRect	(	QPainter *	painter,
		int	x,
		int	y,
		int	w,
		int	h
	)

static

Wrapper for QPainter::drawRect()

void QwtPainter::drawRect	(	QPainter *	painter,
		const QRect &	rect
	)

static

Wrapper for QPainter::drawRect()

void QwtPainter::drawSimpleRichText	(	QPainter *	painter,
		const QRect &	rect,
		int	flags,
		QTextDocument &	text
	)

static

Wrapper for QSimpleRichText::draw()

void QwtPainter::drawText	(	QPainter *	painter,
		int	x,
		int	y,
		const QString &	text
	)

static

Wrapper for QPainter::drawText()

void QwtPainter::drawText	(	QPainter *	painter,
		const QPoint &	pos,
		const QString &	text
	)

static

Wrapper for QPainter::drawText()

void QwtPainter::drawText	(	QPainter *	painter,
		int	x,
		int	y,
		int	w,
		int	h,
		int	flags,
		const QString &	text
	)

static

Wrapper for QPainter::drawText()

void QwtPainter::drawText	(	QPainter *	painter,
		const QRect &	rect,
		int	flags,
		const QString &	text
	)

static

Wrapper for QPainter::drawText()

void QwtPainter::fillRect	(	QPainter *	painter,
		const QRect &	rect,
		const QBrush &	brush
	)

static

Wrapper for QPainter::fillRect()

const QwtMetricsMap & QwtPainter::metricsMap ( )

static

Returns:: Metrics map

void QwtPainter::resetMetricsMap ( )

static

Reset the metrics map to the ratio 1:1

See also:: QwtPainter::setMetricsMap(), QwtPainter::resetMetricsMap()

QPen QwtPainter::scaledPen ( const QPen & pen )

static

Scale a pen according to the layout metrics.

The width of non cosmetic pens is scaled from screen to layout metrics, so that they look similar on paint devices with different resolutions.

Parameters:

pen	Unscaled pen

Returns:: Scaled pen

void QwtPainter::setClipRect	(	QPainter *	painter,
		const QRect &	rect
	)

static

Wrapper for QPainter::setClipRect()

void QwtPainter::setDeviceClipping ( bool enable )

static

En/Disable device clipping.

On X11 the default for device clipping is enabled, otherwise it is disabled.

See also:: QwtPainter::deviceClipping()

void QwtPainter::setMetricsMap	(	const QPaintDevice *	layout,
		const QPaintDevice *	device
	)

static

Scale all QwtPainter drawing operations using the ratio QwtPaintMetrics(from).logicalDpiX() / QwtPaintMetrics(to).logicalDpiX() and QwtPaintMetrics(from).logicalDpiY() / QwtPaintMetrics(to).logicalDpiY()

See also:: QwtPainter::resetScaleMetrics(), QwtPainter::scaleMetricsX(), QwtPainter::scaleMetricsY()

void QwtPainter::setMetricsMap ( const QwtMetricsMap & map )

static

Change the metrics map

See also:: QwtPainter::resetMetricsMap(), QwtPainter::metricsMap()

Static Public Member Functions

Detailed Description

Member Function Documentation