qcanvaspolygon.3qt man page

QCanvasPolygon — Polygon on a QCanvas

Synopsis

#include <qcanvas.h>

Inherits QCanvasPolygonalItem.

Inherited by QCanvasSpline.

Public Members

QCanvasPolygon ( QCanvas * canvas )

~QCanvasPolygon ()

void setPoints ( QPointArray pa )

QPointArray points () const

virtual QPointArray areaPoints () const

virtual int rtti () const

Protected Members

virtual void drawShape ( QPainter & p )

Description

The QCanvasPolygon class provides a polygon on a QCanvas.

Paints a polygon with a QBrush. The polygon's points can be set in the constructor or set or changed later using setPoints(). Use points() to retrieve the points, or areaPoints() to retrieve the points relative to the canvas's origin.

The polygon can be drawn on a painter with drawShape().

Like any other canvas item polygons can be moved with QCanvasItem::move() and QCanvasItem::moveBy(), or by setting coordinates with QCanvasItem::setX(), QCanvasItem::setY() and QCanvasItem::setZ().

Note: QCanvasPolygon does not use the pen.

See also Graphics Classes and Image Processing Classes.

QCanvasPolygon::QCanvasPolygon ( QCanvas * canvas )

Constructs a point-less polygon on the canvas canvas. You should call setPoints() before using it further.

QCanvasPolygon::~QCanvasPolygon ()

Destroys the polygon.

QPointArray QCanvasPolygon::areaPoints () const [virtual]

Returns the vertices of the polygon translated by the polygon's current x(), y() position, i.e. relative to the canvas's origin.

See also setPoints() and points().

Reimplemented from QCanvasPolygonalItem.

void QCanvasPolygon::drawShape ( QPainter & p ) [virtual protected]

Draws the polygon using the painter p.

Note that QCanvasPolygon does not support an outline (the pen is always NoPen).

Reimplemented from QCanvasPolygonalItem.

QPointArray QCanvasPolygon::points () const

Returns the vertices of the polygon, not translated by the position.

See also setPoints() and areaPoints().

int QCanvasPolygon::rtti () const [virtual]

Returns 4 (QCanvasItem::Rtti_Polygon).

See also QCanvasItem::rtti().

Reimplemented from QCanvasPolygonalItem.

Reimplemented in QCanvasSpline.

void QCanvasPolygon::setPoints ( QPointArray pa )

Sets the points of the polygon to be pa. These points will have their x and y coordinates automatically translated by x(), y() as the polygon is moved.

See Also

http://doc.trolltech.com/qcanvaspolygon… http://www.trolltech.com/faq/tech.html

Author

Generated automatically from the source code.

Bugs

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If you find errors in this manual page, please report them to qt-bugs@trolltech.com. Please include the name of the manual page (qcanvaspolygon.3qt) and the Qt version (3.3.8).

Referenced By

QCanvasPolygon.3qt(3) is an alias of qcanvaspolygon.3qt(3).

2 February 2007 Trolltech AS