134 lines
3.2 KiB
Plaintext
134 lines
3.2 KiB
Plaintext
/*
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* Copyright 2014 Haiku, Inc. All rights reserved.
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* Distributed under the terms of the MIT License.
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*
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* Authors:
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* John Scipione, jscipione@gmail.com
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*
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* Corresponds to:
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* headers/os/interface/Polygon.h hrev47240
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* src/kits/interface/Polygon.cpp hrev47240
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*/
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/*!
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\file Polygon.h
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\ingroup interface
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\ingroup libbe
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\brief BPolygon class definition.
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*/
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/*!
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\class BPolygon
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\ingroup interface
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\ingroup libbe
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\brief A closed, many-sided figure which defines an area in a
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two-dimensional Cartesian coordinate system.
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A BPolygon is defined as a set of BPoint objects, each BPoint represents
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a vertex of the polygon. Unlike a BRect, a BPolygon can can have any number
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of sides and the sides don't have to be aligned on coordinate axes.
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BPolygon objects are most commonly used for drawing. BView::StrokePolygon()
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and BView::FillPolygon() allow you to draw a polygon in a BView by taking a
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BPolygon object as an argument.
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\sa BView::StrokePolygon()
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\sa BView::FillPolygon()
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*/
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/*!
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\fn BPolygon::BPolygon(const BPoint* points, int32 count)
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\brief Initializes a new BPolygon object from an array of \a points.
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\param points The array of BPoint objects to add.
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\param count The number of BPoint objects in the array.
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*/
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/*!
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\fn BPolygon::BPolygon(const BPolygon& other)
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\brief Initializes a new BPolygon object from another BPolygon and
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copies the list of BPoint objects from \a other.
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\note This method was not available in BeOS R5.
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\param other The BPolygon object to copy from.
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*/
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/*!
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\fn BPolygon::BPolygon(const BPolygon* other)
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\brief Initializes a new BPolygon object from a pointer to another
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BPolygon and copies the list of BPoint objects from \a other.
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\param other A pointer to a BPolygon object to copy from.
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*/
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/*!
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\fn BPolygon::BPolygon()
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\brief Initializes an empty polygon without any points.
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\see BPolygon::AddPoints() to add points to the BPolygon.
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*/
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/*!
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\fn BPolygon::~BPolygon()
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\brief Destroys the object and frees the memory used by the associated
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BPoint objects.
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*/
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/*!
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\fn BPolygon& BPolygon::operator=(const BPolygon& other)
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\brief Initializes a new BPolygon object and copies the list of BPoint
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objects from \a other.
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\param other The BPolygon object to copy from.
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*/
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/*!
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\fn BRect BPolygon::Frame() const
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\brief Returns the frame rectangle that encloses the BPolygon object.
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*/
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/*!
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\fn void BPolygon::AddPoints(const BPoint* points, int32 count)
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\brief Adds an array of BPoint objects.
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\param points The array of BPoint objects to add.
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\param count The number of BPoint objects in the array.
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*/
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/*!
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\fn int32 BPolygon::CountPoints() const
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\brief Returns the number of points associated with the polygon.
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*/
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/*!
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\fn void BPolygon::MapTo(BRect source, BRect destination)
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\brief Modifies each BPoint in the BPolygon so that the shape fits inside
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the \a destination rectangle.
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The \a source rectangle is used so that the points are mapped
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proportionally. To modify a polygon so that it is inscribed in the
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\a destination rectangle exactly, pass the frame rectangle as the
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\a source.
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*/
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/*!
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\fn void BPolygon::PrintToStream() const
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\brief Prints each of the points of the BPolygon to standard output.
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\see BPoint::PrintToStream()
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*/
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