EC_SNAPLINE Class Reference

EDIT_CONSTRAINT for a EDIT_LINE, one of the ends is snapped to a spot determined by a transform function passed as parameter (e.g. More...

#include <edit_constraints.h>

Inheritance diagram for EC_SNAPLINE:

Public Types
typedef std::function< VECTOR2D(const VECTOR2D &)>	V2D_TRANSFORM_FUN
	< Typedef for a function that determines snapping point. More...

Public Member Functions
	EC_SNAPLINE (EDIT_LINE &aLine, V2D_TRANSFORM_FUN aSnapFun)
virtual	~EC_SNAPLINE ()
	Correct coordinates of the constrained edit handle. More...
virtual void	Apply (EDIT_LINE &aHandle) override
	Correct coordinates of the constrained edit handle. More...
void	Apply ()
	Correct coordinates of the constrained edit handle. More...

Protected Attributes
EDIT_LINE &	m_constrained
	Point that is constrained by rules implemented by Apply(). More...

Private Attributes
V2D_TRANSFORM_FUN	m_snapFun
	< Function that determines snapping point. More...

Detailed Description

EDIT_CONSTRAINT for a EDIT_LINE, one of the ends is snapped to a spot determined by a transform function passed as parameter (e.g.

it can be snapped to a grid), instead of having the line center snapped to a point.

Definition at line 231 of file edit_constraints.h.

Member Typedef Documentation

V2D_TRANSFORM_FUN

typedef std::function<VECTOR2D( const VECTOR2D& )> EC_SNAPLINE::V2D_TRANSFORM_FUN

< Typedef for a function that determines snapping point.

Definition at line 235 of file edit_constraints.h.

Constructor & Destructor Documentation

EC_SNAPLINE()

EC_SNAPLINE::EC_SNAPLINE	(	EDIT_LINE &	aLine,
		V2D_TRANSFORM_FUN	aSnapFun
	)

Definition at line 185 of file edit_constraints.cpp.

 :
 EDIT_CONSTRAINT<EDIT_LINE>( aLine ), m_snapFun( std::move(aSnapFun) )
{}

References move.

~EC_SNAPLINE()

virtual EC_SNAPLINE::~EC_SNAPLINE ( )

inlinevirtual

Correct coordinates of the constrained edit handle.

Definition at line 239 of file edit_constraints.h.

Member Function Documentation

Apply() [1/2]

void EDIT_CONSTRAINT< EDIT_LINE >::Apply ( )

inlineinherited

Correct coordinates of the constrained edit handle.

Definition at line 71 of file edit_constraints.h.

 {
 Apply( m_constrained );
 }

Apply() [2/2]

void EC_SNAPLINE::Apply ( EDIT_LINE &  aHandle )

overridevirtual

Correct coordinates of the constrained edit handle.

Implements EDIT_CONSTRAINT< EDIT_LINE >.

Definition at line 190 of file edit_constraints.cpp.

{
 VECTOR2D delta = aHandle.GetEnd().GetPosition() - aHandle.GetOrigin().GetPosition();

 aHandle.GetOrigin().SetPosition( m_snapFun( aHandle.GetOrigin().GetPosition() ) );
 aHandle.GetEnd().SetPosition( aHandle.GetOrigin().GetPosition() + delta );
}

References delta, EDIT_LINE::GetEnd(), EDIT_LINE::GetOrigin(), EDIT_POINT::GetPosition(), m_snapFun, and EDIT_POINT::SetPosition().

Member Data Documentation

m_constrained

EDIT_LINE & EDIT_CONSTRAINT< EDIT_LINE >::m_constrained

protectedinherited

Point that is constrained by rules implemented by Apply().

Definition at line 77 of file edit_constraints.h.

m_snapFun

V2D_TRANSFORM_FUN EC_SNAPLINE::m_snapFun

private

< Function that determines snapping point.

Definition at line 247 of file edit_constraints.h.

Referenced by Apply().

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

• edit_constraints.h
• edit_constraints.cpp