#include <line.h>

Inheritance diagram for canvascv::Line:

Public Member Functions
void	lockTail (bool isLocked)
	set if to lock the tail (Handle) of the line

void	lockHead (bool isLocked)
	set if to lock the head (Handle) of the line

void	showTail (bool isVisible)
	set if to show the tail (Handle) of the line

void	showHead (bool isVisible)
	set if to show the head (Handle) of the line

void	setTailPos (const cv::Point &pos)
	will move the tail (Handle) of the line to pos

void	setHeadPos (const cv::Point &pos)
	will move the head (Handle) of the line to pos

double	length () const
	returns the length of the line in pixels

bool	isPointOnLine (const cv::Point &p3, int threshold=3) const
	returns true if the point 'p3' is on the line, give or take 'threshold' pixels

Handle &	getPT1 ()
	get the Handle to the tail of the

Handle &	getPT2 ()
	get the Handle to the head of the

const cv::Point &	getTail () const
	get the Point position og the tail Handle

const cv::Point &	getHead () const
	get the Point position og the head Handle

virtual bool	isAtPos (const cv::Point &pos)
	returns true if shape is at pos, false otherwise

virtual bool	keyPressed (int &key)
	keyPressed will be called by Canvas for active shapes More...

virtual std::list< Handle * >	getConnectionTargets ()
	getConnectionTargets More...

virtual const char *	getType () const
	getType is always implemented by derived to return the same static pointer per shape. More...

Public Member Functions inherited from canvascv::CompoundShape
virtual void	setOutlineColor (const cv::Scalar &value)
	set the outline color

virtual void	setFillColor (const cv::Scalar &value)
	set the fill color (fill color is not very useful for shapes right now)

virtual void	setThickness (int value)
	set line thickness to use when drawing

virtual void	setLineType (int value)
	set the line type (LINE_4, LINE_8, LINE_AA)

virtual void	setLocked (bool value)
	set the shape lock state (can/can't be moved/edited)

virtual void	setVisible (bool value)
	set the shape visible state

virtual std::shared_ptr< Shape >	getShape (int id)
	getShape More...

Public Member Functions inherited from canvascv::Shape
	Shape ()
	constructor

	Shape (const Shape &other)
	copy constructor

virtual	~Shape ()
	virtual destructor

void	notifyOnEvent (CBPerShape cb)
	used to register for notifications on shape More...

cv::Scalar	getOutlineColor () const
	get the outline color

cv::Scalar	getFillColor () const
	get the fill color (fill color is not very useful for shapes right now)

bool	getLocked () const
	is the shape locked (can't be moved/edited)

bool	getVisible () const
	is the shape visible

int	getThickness () const
	get line thickness to use when drawing

int	getLineType () const
	get the line type (LINE_4, LINE_8, LINE_AA)

int	getId ()
	return a unique id for this shape

Protected Member Functions
virtual void	draw (cv::Mat &canvas)
	draw shape on the canvas More...

virtual bool	mousePressed (const cv::Point &pos, bool onCreate=false)
	mousePressed More...

virtual bool	mouseMoved (const cv::Point &pos)
	mouseMoved More...

virtual bool	mouseReleased (const cv::Point &pos)
	mouseReleased More...

Protected Member Functions inherited from canvascv::CompoundShape
virtual void	lostFocus ()
	lostFocus is called by Canvas if we're in it and just became non-active

Protected Member Functions inherited from canvascv::Shape
void	drawHelper (cv::Mat &canvas, Shape *other)
	helper method for non compund shapes to draw their members

Additional Inherited Members
Public Types inherited from canvascv::Shape
typedef std::function< void(Shape *, Event)>	CBPerShape
	signature of a callback which gets the Event

Detailed Description

Allows you to draw a line by mouse or from code

Member Function Documentation

virtual void canvascv::Line::draw ( cv::Mat & canvas )

protectedvirtual

Parameters

canvas

Reimplemented from canvascv::CompoundShape.

Reimplemented in canvascv::Arrow.

virtual std::list<Handle *> canvascv::Line::getConnectionTargets ( )

virtual

Return a list of Handles this shape allows to connect to from other shapes (mainly for ShapesConnector)

Returns: list of Handle pointers we ShapesConnector can use to connect

Implements canvascv::Shape.

Reimplemented in canvascv::ShapesConnector.

virtual const char* canvascv::Line::getType ( ) const

virtual

Returns: const char * pointer to string with shape type name

Implements canvascv::Shape.

Reimplemented in canvascv::ShapesConnector, canvascv::LabeledShapesConnector, and canvascv::Arrow.

virtual bool canvascv::Line::keyPressed ( int & key )

virtual

Parameters

key	was pressed. You must set it to -1 if you consumed it.

Returns: true if we want to stay in focus and false otherwise

Reimplemented from canvascv::CompoundShape.

virtual bool canvascv::Line::mouseMoved ( const cv::Point & pos )

protectedvirtual

Was a mouse moved over this shape?
If shape is during edit, then these are the mouse position.
Parameters

pos

Returns
true if a mouse moved over this shape, or it is during edit. false otherwise.

Reimplemented from canvascv::CompoundShape.