qt-material-widgets/source/lib/qtmaterialripple.cpp

#include "lib/qtmaterialripple.h"

#include "lib/qtmaterialrippleoverlay.h"

/*!
 *  \class QtMaterialRipple
 *  \internal
 */

QtMaterialRipple::QtMaterialRipple(const QPoint& center, QObject* parent)
    : QParallelAnimationGroup(parent)
    , m_overlay(0)
    , m_radiusAnimation(animate("radius"))
    , m_opacityAnimation(animate("opacity"))
    , m_radius(0)
    , m_opacity(0)
    , m_center(center)
{
  init();
}

QtMaterialRipple::QtMaterialRipple(const QPoint& center,
                                   QtMaterialRippleOverlay* overlay,
                                   QObject* parent)
    : QParallelAnimationGroup(parent)
    , m_overlay(overlay)
    , m_radiusAnimation(animate("radius"))
    , m_opacityAnimation(animate("opacity"))
    , m_radius(0)
    , m_opacity(0)
    , m_center(center)
{
  init();
}

QtMaterialRipple::~QtMaterialRipple() {}

void QtMaterialRipple::setRadius(qreal radius)
{
  Q_ASSERT(m_overlay);

  if (m_radius == radius) {
    return;
  }
  m_radius = radius;
  m_overlay->update();
}

void QtMaterialRipple::setOpacity(qreal opacity)
{
  Q_ASSERT(m_overlay);

  if (m_opacity == opacity) {
    return;
  }
  m_opacity = opacity;
  m_overlay->update();
}

void QtMaterialRipple::setColor(const QColor& color)
{
  if (m_brush.color() == color) {
    return;
  }
  m_brush.setColor(color);

  if (m_overlay) {
    m_overlay->update();
  }
}

void QtMaterialRipple::setBrush(const QBrush& brush)
{
  m_brush = brush;

  if (m_overlay) {
    m_overlay->update();
  }
}

void QtMaterialRipple::destroy()
{
  Q_ASSERT(m_overlay);

  m_overlay->removeRipple(this);
}

/*!
 *  \internal
 */
QPropertyAnimation* QtMaterialRipple::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;
}

/*!
 *  \internal
 */
void QtMaterialRipple::init()
{
  setOpacityStartValue(0.5);
  setOpacityEndValue(0);
  setRadiusStartValue(0);
  setRadiusEndValue(300);

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

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