CQEffectDescription.cpp File Reference

#include <QtGui/QGraphicsItem>
#include <QtGui/QGraphicsEffect>
#include <qlayout/CQEffectDescription.h>
#include <qlayout/CQCopasiEffect.h>

Include dependency graph for CQEffectDescription.cpp:

Go to the source code of this file.

Functions
QColor	interpolate (const QColor &a, const QColor &b, float t)
qreal	linear (qreal a, qreal b, qreal t)

Function Documentation

QColor interpolate	(	const QColor &	a,
		const QColor &	b,
		float	t
	)

Interpolate between a, and b

0.0 <= t <= 1.0

Definition at line 22 of file CQEffectDescription.cpp.

References linear().

Referenced by CQEffectDescription::applyToScene().

{
  int ah, as, av, aa;
  a.getHsv(&ah, &as, &av, &aa);

  int bh, bs, bv, ba;
  b.getHsv(&bh, &bs, &bv, &ba);

  int rh, rs, rv, ra;
  rh = linear(ah, bh, t);
  rs = linear(as, bs, t);
  rv = linear(av, bv, t);
  ra = linear(aa, ba, t);

  return QColor::fromHsv(rh, rs, rv, ra);
}

qreal linear	(	qreal	a,
		qreal	b,
		qreal	t
	)

Definition at line 12 of file CQEffectDescription.cpp.

Referenced by CQEffectDescription::applyToScene(), CGA::creation(), getGradient(), interpolate(), COptMethodEP2::optimise(), and COptMethodHGASA::optimise().

{
  return a * (1 - t) + b * t;
}