zprmouse Class Reference

Conversion functions for mouse coordinate spaces. More...

#include <zprmouse.h>

Collaboration diagram for zprmouse:

List of all members.

Public Member Functions
	zprmouse (zpr &zz_)
	Constructor.
point2< uint > const	mouse () const
	Get the screen coordinates.
point2< int > const	mouseint () const
	Return the position as a point in integers.
template<typename T >
void	mouse (T &p) const
point2< double > const	mouseratio (point2< uint > const &p) const
	Convert screen point to ratio.
point2< double > const	mouseratio () const
	Convert actual mouse screen point to ratio.
point2< uint > const	mouseratioInv (point2< double > const &p) const
point3< double > const	world (point2< uint > const &p) const
point3< double > const	world (point2< double > const &p) const
	Convert ratio to pixel screen point, then to world.
point3< double > const	world () const
	Convert actual mouse screen point to near world point.
void	update ()
Public Attributes
zpr &	zz
	Reference to actual mouse state.

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Detailed Description

Conversion functions for mouse coordinate spaces.

Top left is origin. So positive y is downward direction.

Local pixel coordinate system, Local ratio coordinate system, world near plane supported.

The local ratio is the screen mapped to a unit square. So could specify a point in local ratio and this would have meaning in all different screen rectangles.

Definition at line 19 of file zprmouse.h.

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Constructor & Destructor Documentation

zprmouse::zprmouse

(

zpr &

zz_

)

[inline]

Constructor.

Definition at line 27 of file zprmouse.h.

    : zz(zz_) {}

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Member Function Documentation

template<typename T >

void zprmouse::mouse

(

T &

p

)

const [inline]

Definition at line 38 of file zprmouse.h.

References zpr::mouseX, zpr::mouseY, and zz.

    { p.x = zz.mouseX; p.y = zz.mouseY; }

point2<uint> const zprmouse::mouse

(

)

const [inline]

Get the screen coordinates.

Definition at line 31 of file zprmouse.h.

References zpr::mouseX, zpr::mouseY, and zz.

    { return point2<uint>(zz.mouseX,zz.mouseY); }

point2<int> const zprmouse::mouseint

(

)

const [inline]

Return the position as a point in integers.

Definition at line 34 of file zprmouse.h.

References zpr::mouseX, zpr::mouseY, and zz.

    { return point2<int>(zz.mouseX,zz.mouseY); }

point2< double > const zprmouse::mouseratio

(

)

const

Convert actual mouse screen point to ratio.

Definition at line 18 of file zprmouse.cpp.

References zpr::mouseX, zpr::mouseY, and zz.

{
  return mouseratio(point2<uint>(zz.mouseX,zz.mouseY));
}

point2< double > const zprmouse::mouseratio

(

point2< uint > const &

p

)

const

Convert screen point to ratio.

Definition at line 3 of file zprmouse.cpp.

References zpr::height, r, zpr::width, point2< T >::x, point2< T >::y, and zz.

{
  assert(zz.width!=0);
  assert(zz.height!=0);

  point2<double> r(p.x,p.y);
  r.x /= (double)zz.width;
  r.y /= (double)zz.height;

  assert(r.x <= 1.0);
  assert(r.y <= 1.0);

  return r;
}

point2<uint> const zprmouse::mouseratioInv

(

point2< double > const &

p

)

const [inline]

Definition at line 46 of file zprmouse.h.

References zpr::height, zpr::width, point2< T >::x, point2< T >::y, and zz.

  {
    assert(p.x<=1.0);
    assert(p.y<=1.0);
    assert(p.x>=0.0);
    assert(p.y>=0.0);
    return point2<uint>(p.x*zz.width,p.y*zz.height);
  }

void zprmouse::update

(

)

[inline]

Definition at line 63 of file zprmouse.h.

References zpr::update(), and zz.

Referenced by mazedisp03::mouseevent().

    { zz.update(); }

point3< double > const zprmouse::world

(

)

const

Convert actual mouse screen point to near world point.

Definition at line 31 of file zprmouse.cpp.

References zpr::mouseXworld, zpr::mouseYworld, zpr::mouseZworld, and zz.

{
  return point3<double>(zz.mouseXworld,zz.mouseYworld,zz.mouseZworld);
}

point3< double > const zprmouse::world

(

point2< double > const &

p

)

const

Convert ratio to pixel screen point, then to world.

Definition at line 49 of file zprmouse.cpp.

{
  return world( mouseratioInv(p) );
}

point3< double > const zprmouse::world

(

point2< uint > const &

p

)

const

Definition at line 23 of file zprmouse.cpp.

References zpr::readMouse(), point2< T >::x, point3< T >::x, point2< T >::y, point3< T >::y, point3< T >::z, and zz.

Referenced by buttonpanel01::update().

{
  point3<GLdouble> p2;
  zz.readMouse(&p2.x,&p2.y,&p2.z,p.x,p.y);

  return point3<double>(p2.x,p2.y,p2.z);
}

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Member Data Documentation

zpr& zprmouse::zz

Reference to actual mouse state.

Definition at line 24 of file zprmouse.h.

Referenced by buttonpanel02::draw(), mazedisp03::f01(), mouse(), mouseint(), mouseratio(), mouseratioInv(), update(), buttonpanel02::update(), and world().

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

• zpr/zprmouse.h
• zpr/zprmouse.cpp