CirclePoint Class Reference

Draws a circle into the map. More...

#include <circlepoint.h>

Inheritance diagram for CirclePoint:

List of all members.

Public Types

enum Alignment {
TopLeft, TopRight, BottomLeft, BottomRight,
Middle
}

sets where the point should be aligned More...

Public Slots

virtual void setVisible (bool visible)

if visible is true, the layer is made visible

Signals

void geometryClicked (Geometry *geometry, QPoint point)

This signal is emitted when a Geometry is clicked.

void positionChanged (Geometry *geom)

A Geometry emits this signal, when its position gets changed.

Public Member Functions

virtual QRectF boundingBox ()

returns the bounding box of the point

CirclePoint (qreal x, qreal y, int radius=10, QString name=QString(), Alignment alignment=Middle, QPen *pen=0)

CirclePoint (qreal x, qreal y, QString name=QString(), Alignment alignment=Middle, QPen *pen=0)

QPointF coordinate () const

returns the coordinate of the point

bool Equals (Geometry *geom)

bool isVisible () const

returns true if this Geometry is visible

qreal latitude () const

returns the latitude of the point

qreal longitude () const

returns the longitude of the point

QString name () const

returns the name of this Geometry

Geometry * parentGeometry () const

returns the parent Geometry of this Geometry

QPen * pen () const

returns the QPen which is used on drawing

QPixmap * pixmap ()

returns the pixmap of the point

void setBaselevel (int zoomlevel)

Sets the zoom level on which the point�s pixmap gets displayed on full size.

void setMaxsize (QSize maxsize)

sets a maximal size for the pixmap

void setMinsize (QSize minsize)

sets a minimal size for the pixmap

void setName (QString name)

sets the name of the geometry

virtual void setPen (QPen *pen)

sets the QPen which is used for drawing the circle

QString toString ()

returns a String representation of this Geometry

QWidget * widget ()

returns the widget of the point

Protected Member Functions

virtual bool Touches (Point *geom, const MapAdapter *mapadapter)

returns true if the given Point touches this Point

Detailed Description

Draws a circle into the map.

This is a conveniece class for Point. It configures the pixmap of a Point to draw a circle. A QPen could be used to change the color or line-width of the circle

Author:: Kai Winter <kaiwinter@gmx.de>

Member Enumeration Documentation

enum Alignment [inherited]

sets where the point should be aligned

Enumerator:

TopLeft	Align on TopLeft
TopRight	Align on TopRight
BottomLeft	Align on BottomLeft
BottomRight	Align on BottomRight
Middle	Align on Middle

Constructor & Destructor Documentation

CirclePoint	(	qreal	x,
		qreal	y,
		QString	name = `QString()`,
		Alignment	alignment = `Middle`,
		QPen *	pen = `0`
	)

Parameters:

	x	longitude
	y	latitude
	name	name of the circle point
	alignment	alignment (Middle or TopLeft)
	pen	QPen for drawing

CirclePoint	(	qreal	x,
		qreal	y,
		int	radius = `10`,
		QString	name = `QString()`,
		Alignment	alignment = `Middle`,
		QPen *	pen = `0`
	)

Parameters:

	x	longitude
	y	latitude
	radius	the radius of the circle
	name	name of the circle point
	alignment	alignment (Middle or TopLeft)
	pen	QPen for drawing

Member Function Documentation

QRectF boundingBox ( ) [virtual, inherited]

returns the bounding box of the point

The Bounding contains the coordinate of the point and its size. The size is set, if the point contains a pixmap or a widget

Returns:: the bounding box of the point

Implements Geometry.

QPointF coordinate ( ) const [inherited]

returns the coordinate of the point

The x component of the returned QPointF is the longitude value, the y component the latitude

Returns:: the coordinate of a point

Referenced by MapControl::setView(), and Point::Touches().

bool Equals ( Geometry * geom ) [inherited]

returns true if the given Geometry is equal to this Geometry not implemented yet!

Parameters:

geom

The Geometry to be tested

Returns:: true if the given Geometry is equal to this

void geometryClicked	(	Geometry *	geometry,
		QPoint	point
	)			`[signal, inherited]`

This signal is emitted when a Geometry is clicked.

A Geometry is clickable, if the containing layer is clickable. The objects emits a signal if it gets clicked

Parameters:

	geometry	The clicked Geometry
	point	-unused-

Referenced by Point::Touches().

bool isVisible ( ) const [inherited]

returns true if this Geometry is visible

Returns:: true if this Geometry is visible

Referenced by Point::Touches().

qreal latitude ( ) const [inherited]

returns the latitude of the point

Returns:: the latitude of the point

Referenced by LineString::boundingBox(), and Point::Touches().

qreal longitude ( ) const [inherited]

returns the longitude of the point

Returns:: the longitude of the point

Referenced by LineString::boundingBox(), and Point::Touches().

QString name ( ) const [inherited]

returns the name of this Geometry

Returns:: the name of this Geometry

Geometry * parentGeometry ( ) const [inherited]

returns the parent Geometry of this Geometry

A LineString is a composition of many Points. This methods returns the parent (the LineString) of a Point

Returns:: the parent Geometry of this Geometry

QPen * pen ( ) const [inherited]

returns the QPen which is used on drawing

The pen is set depending on the Geometry. A CirclePoint for example takes one with the constructor.

Returns:: the QPen which is used for drawing

QPixmap * pixmap ( ) [inherited]

returns the pixmap of the point

Returns:: the pixmap of the point

void positionChanged ( Geometry * geom ) [signal, inherited]

A Geometry emits this signal, when its position gets changed.

Parameters:

geom

the Geometry

void setBaselevel ( int zoomlevel ) [inherited]

Sets the zoom level on which the point�s pixmap gets displayed on full size.

Use this method to set a zoom level on which the pixmap gets displayed with its real size. On zoomlevels below it will be displayed smaller, and on zoom levels thereover it will be displayed larger

See also:: setMinsize, setMaxsize

Parameters:

zoomlevel

the zoomlevel on which the point will be displayed on full size

void setMaxsize ( QSize maxsize ) [inherited]

sets a maximal size for the pixmap

When the point´s pixmap should change its size on zooming, this method sets the maximal size.

See also:: setBaselevel

Parameters:

maxsize

the maximal size which the pixmap should have

void setMinsize ( QSize minsize ) [inherited]

sets a minimal size for the pixmap

When the point's pixmap should change its size on zooming, this method sets the minimal size.

See also:: setBaselevel

Parameters:

minsize

the minimal size which the pixmap should have

void setName ( QString name ) [inherited]

sets the name of the geometry

Parameters:

name

the new name of the geometry

void setPen ( QPen * pen ) [virtual]

sets the QPen which is used for drawing the circle

A QPen can be used to modify the look of the drawn circle

Parameters:

pen

the QPen which should be used for drawing

See also:: http://doc.trolltech.com/4.3/qpen.html

Reimplemented from Geometry.

void setVisible ( bool visible ) [virtual, slot, inherited]

if visible is true, the layer is made visible

Parameters:

visible

if the layer should be visible

Reimplemented from Geometry.

QString toString ( ) [inherited]

returns a String representation of this Geometry

not implemented yet!

Returns:: a String representation of this Geometry

bool Touches	(	Point *	geom,
		const MapAdapter *	mapadapter
	)			`[protected, virtual, inherited]`

returns true if the given Point touches this Point

The collision detection checks for the bounding rectangulars.

Parameters:

	geom	the other point which should be tested on collision
	mapadapter	the mapadapter which is used for calculations

Returns:

Implements Geometry.

References Point::BottomLeft, Point::BottomRight, Point::coordinate(), MapAdapter::coordinateToDisplay(), MapAdapter::displayToCoordinate(), Geometry::geometryClicked(), Geometry::isVisible(), Point::latitude(), Point::longitude(), Point::Middle, Point::TopLeft, and Point::TopRight.

QWidget * widget ( ) [inherited]

returns the widget of the point

Returns:: the widget of the point

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

circlepoint.h
circlepoint.cpp


Public Types
enum	Alignment { TopLeft, TopRight, BottomLeft, BottomRight, Middle }
	sets where the point should be aligned More...
Public Slots
virtual void	setVisible (bool visible)
	if visible is true, the layer is made visible
Signals
void	geometryClicked (Geometry *geometry, QPoint point)
	This signal is emitted when a Geometry is clicked.
void	positionChanged (Geometry *geom)
	A Geometry emits this signal, when its position gets changed.
Public Member Functions
virtual QRectF	boundingBox ()
	returns the bounding box of the point
	CirclePoint (qreal x, qreal y, int radius=10, QString name=QString(), Alignment alignment=Middle, QPen *pen=0)
	CirclePoint (qreal x, qreal y, QString name=QString(), Alignment alignment=Middle, QPen *pen=0)
QPointF	coordinate () const
	returns the coordinate of the point
bool	Equals (Geometry *geom)
bool	isVisible () const
	returns true if this Geometry is visible
qreal	latitude () const
	returns the latitude of the point
qreal	longitude () const
	returns the longitude of the point
QString	name () const
	returns the name of this Geometry
Geometry *	parentGeometry () const
	returns the parent Geometry of this Geometry
QPen *	pen () const
	returns the QPen which is used on drawing
QPixmap *	pixmap ()
	returns the pixmap of the point
void	setBaselevel (int zoomlevel)
	Sets the zoom level on which the point�s pixmap gets displayed on full size.
void	setMaxsize (QSize maxsize)
	sets a maximal size for the pixmap
void	setMinsize (QSize minsize)
	sets a minimal size for the pixmap
void	setName (QString name)
	sets the name of the geometry
virtual void	setPen (QPen *pen)
	sets the QPen which is used for drawing the circle
QString	toString ()
	returns a String representation of this Geometry
QWidget *	widget ()
	returns the widget of the point
Protected Member Functions
virtual bool	Touches (Point geom, const MapAdapter mapadapter)
	returns true if the given Point touches this Point