The QetGraphicsHandlerUtility class This class provide some methods to create and use handler for modify graphics shape like line rectangle etc... They also provide some convenience static method. More...

#include <qetgraphicshandlerutility.h>

Collaboration diagram for QetGraphicsHandlerUtility:

Static Public Member Functions
static QVector< QPointF >	pointsForRect (const QRectF &rect)
	QetGraphicsHandlerUtility::pointsForRect Return the keys points of the rectangle, stored in a vector. The points in the vector are stored like this :

static QVector< QPointF >	pointsForLine (const QLineF &line)
	QetGraphicsHandlerUtility::pointsForLine The point that define a line in a QVector. there is two points.

static QVector< QPointF >	pointsForArc (const QRectF &rect, qreal start_angle, qreal span_angle)
	QetGraphicsHandlerUtility::pointsForArc Return the points for the given arc. The first value in the vector is the start point, the second the end point.

static QRectF	rectForPosAtIndex (const QRectF &old_rect, const QPointF &pos, int index)
	QetGraphicsHandlerUtility::rectForPosAtIndex Return a rectangle after modification of the point 'pos' at index 'index' of original rectangle 'old_rect'.

static QRectF	mirrorRectForPosAtIndex (const QRectF &old_rect, const QPointF &pos, int index)
	QetGraphicsHandlerUtility::mirrorRectForPosAtIndex Return a rectangle after modification of the point 'pos' at index 'index' of original rectangle 'old_rect'. the opposite edge is modified inversely (like a mirror)

static QRectF	rectForArc (const QRectF &rect, qreal start_angle, qreal span_angle)
	QetGraphicsHandlerUtility::rectForArc.

static QLineF	lineForPosAtIndex (const QLineF &old_line, const QPointF &pos, int index)
	QetGraphicsHandlerUtility::lineForPosAtIndex Return a line after modification of pos at index index of old_line.

static QPolygonF	polygonForInsertPoint (const QPolygonF &old_polygon, bool closed, const QPointF &pos)
	QetGraphicsHandlerUtility::polygonForInsertPoint.

static QVector< QPointF >	pointForRadiusRect (const QRectF &rect, qreal xRadius, qreal yRadius, Qt::SizeMode mode=Qt::AbsoluteSize)
	QetGraphicsHandlerUtility::pointForRadiusRect.

static qreal	radiusForPosAtIndex (const QRectF &rect, const QPointF &pos, int index, Qt::SizeMode mode=Qt::AbsoluteSize)
	QetGraphicsHandlerUtility::radiusForPosAtIndex.

static qreal	percentageInRange (qreal min, qreal max, qreal value)

Detailed Description

The QetGraphicsHandlerUtility class This class provide some methods to create and use handler for modify graphics shape like line rectangle etc... They also provide some convenience static method.

Member Function Documentation

◆ lineForPosAtIndex()

QLineF QetGraphicsHandlerUtility::lineForPosAtIndex	(	const QLineF &	old_line,
		const QPointF &	pos,
		int	index
	)

static

QetGraphicsHandlerUtility::lineForPosAtIndex Return a line after modification of pos at index index of old_line.

Parameters

old_line
pos
index

Returns

◆ mirrorRectForPosAtIndex()

QRectF QetGraphicsHandlerUtility::mirrorRectForPosAtIndex	(	const QRectF &	old_rect,
		const QPointF &	pos,
		int	index
	)

static

QetGraphicsHandlerUtility::mirrorRectForPosAtIndex Return a rectangle after modification of the point 'pos' at index 'index' of original rectangle 'old_rect'. the opposite edge is modified inversely (like a mirror)

Parameters

old_rect	: the rectangle before modification
pos	: the new position of a key point
index	: the index of the key point to modifie

See also: QetGraphicsHandlerUtility::pointsForRect to know the index of each keys points of a rectangle)

Returns: : the rectangle with modification. If index is lower than 0 or higher than 7, this method return old_rect.

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◆ percentageInRange()

qreal QetGraphicsHandlerUtility::percentageInRange	(	qreal	min,
		qreal	max,
		qreal	value
	)

static

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◆ pointForRadiusRect()

QVector< QPointF > QetGraphicsHandlerUtility::pointForRadiusRect	(	const QRectF &	rect,
		qreal	xRadius,
		qreal	yRadius,
		Qt::SizeMode	mode = `Qt::AbsoluteSize`
	)

static

QetGraphicsHandlerUtility::pointForRadiusRect.

Parameters

rect	the rectangle.
xRadius	: x radius
yRadius	: y radius
mode	: absolute or relative size: NOTE this argument is not used, this function always compute with relative size.

Returns: the points of x and y radius of a rounded rect. The points are always based on the top right corner of the rect. the first point of vector is X the second Y

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◆ pointsForArc()

QVector< QPointF > QetGraphicsHandlerUtility::pointsForArc	(	const QRectF &	rect,
		qreal	start_angle,
		qreal	span_angle
	)

static

QetGraphicsHandlerUtility::pointsForArc Return the points for the given arc. The first value in the vector is the start point, the second the end point.

Parameters

rect
start_angle	: start angle in degree
span_angle	: span angle in degree;

Returns

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◆ pointsForLine()

QVector< QPointF > QetGraphicsHandlerUtility::pointsForLine ( const QLineF & line )

static

QetGraphicsHandlerUtility::pointsForLine The point that define a line in a QVector. there is two points.

Parameters

line

Returns

◆ pointsForRect()

QVector< QPointF > QetGraphicsHandlerUtility::pointsForRect ( const QRectF & rect )

static

QetGraphicsHandlerUtility::pointsForRect Return the keys points of the rectangle, stored in a vector. The points in the vector are stored like this :

0—1—2 | | 3 4 | | 5—6—7

Parameters

rect

Returns

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◆ polygonForInsertPoint()

QPolygonF QetGraphicsHandlerUtility::polygonForInsertPoint	(	const QPolygonF &	old_polygon,
		bool	closed,
		const QPointF &	pos
	)

static

QetGraphicsHandlerUtility::polygonForInsertPoint.

Parameters

old_polygon	: the polygon which we insert a new point.
closed	: polygon is closed or not
pos	: the pos where the new point must be added

Returns: the new polygon

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◆ radiusForPosAtIndex()

qreal QetGraphicsHandlerUtility::radiusForPosAtIndex	(	const QRectF &	rect,
		const QPointF &	pos,
		int	index,
		Qt::SizeMode	mode = `Qt::AbsoluteSize`
	)

static

QetGraphicsHandlerUtility::radiusForPosAtIndex.

Parameters

rect	the rectangle
pos	: the pos of the new radius
index	: index of radius 0=X 1=Y
mode

Returns

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◆ rectForArc()

QRectF QetGraphicsHandlerUtility::rectForArc	(	const QRectF &	rect,
		qreal	start_angle,
		qreal	span_angle
	)

static

QetGraphicsHandlerUtility::rectForArc.

Parameters

rect	: the rect where the arc is defined
start_angle	: start angle in degree
span_angle	: span angle in degree

Returns: Return the rect that bound the arc.

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◆ rectForPosAtIndex()

QRectF QetGraphicsHandlerUtility::rectForPosAtIndex	(	const QRectF &	old_rect,
		const QPointF &	pos,
		int	index
	)

static

QetGraphicsHandlerUtility::rectForPosAtIndex Return a rectangle after modification of the point 'pos' at index 'index' of original rectangle 'old_rect'.

Parameters

old_rect	- the rectangle before modification
pos	- the new position of a key point
index	- the index of the key point to modifie

See also: QetGraphicsHandlerUtility::pointsForRect to know the index of each keys points of a rectangle)

Returns: : the rectangle with modification. If index is lower than 0 or higher than 7, this method return old_rect.

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

sources/QetGraphicsItemModeler/qetgraphicshandlerutility.h
sources/QetGraphicsItemModeler/qetgraphicshandlerutility.cpp

Static Public Member Functions

Detailed Description

Member Function Documentation

◆ lineForPosAtIndex()

◆ mirrorRectForPosAtIndex()

◆ percentageInRange()

◆ pointForRadiusRect()

◆ pointsForArc()

◆ pointsForLine()

◆ pointsForRect()

◆ polygonForInsertPoint()

◆ radiusForPosAtIndex()

◆ rectForArc()

◆ rectForPosAtIndex()