matrixion/src/ui/Ripple.cc

#include "Ripple.h"
#include "RippleOverlay.h"

Ripple::Ripple(const QPoint &center, QObject *parent)
  : QParallelAnimationGroup(parent)
  , overlay_(0)
  , radius_anim_(animate("radius"))
  , opacity_anim_(animate("opacity"))
  , radius_(0)
  , opacity_(0)
  , center_(center)
{
	init();
}

Ripple::Ripple(const QPoint &center, RippleOverlay *overlay, QObject *parent)
  : QParallelAnimationGroup(parent)
  , overlay_(overlay)
  , radius_anim_(animate("radius"))
  , opacity_anim_(animate("opacity"))
  , radius_(0)
  , opacity_(0)
  , center_(center)
{
	init();
}

Ripple::~Ripple()
{
}

void
Ripple::setRadius(qreal radius)
{
	Q_ASSERT(overlay_);

	if (radius_ == radius)
		return;

	radius_ = radius;
	overlay_->update();
}

void
Ripple::setOpacity(qreal opacity)
{
	Q_ASSERT(overlay_);

	if (opacity_ == opacity)
		return;

	opacity_ = opacity;
	overlay_->update();
}

void
Ripple::setColor(const QColor &color)
{
	if (brush_.color() == color)
		return;

	brush_.setColor(color);

	if (overlay_)
		overlay_->update();
}

void
Ripple::setBrush(const QBrush &brush)
{
	brush_ = brush;

	if (overlay_)
		overlay_->update();
}

void
Ripple::destroy()
{
	Q_ASSERT(overlay_);

	overlay_->removeRipple(this);
}

QPropertyAnimation *
Ripple::animate(const QByteArray &property, const QEasingCurve &easing, int duration)
{
	QPropertyAnimation *animation = new QPropertyAnimation;
	animation->setTargetObject(this);
	animation->setPropertyName(property);
	animation->setEasingCurve(easing);
	animation->setDuration(duration);

	addAnimation(animation);

	return animation;
}

void
Ripple::init()
{
	setOpacityStartValue(0.5);
	setOpacityEndValue(0);
	setRadiusStartValue(0);
	setRadiusEndValue(300);

	brush_.setColor(Qt::black);
	brush_.setStyle(Qt::SolidPattern);

	connect(this, SIGNAL(finished()), this, SLOT(destroy()));
}