80 lines
1.7 KiB
C++
80 lines
1.7 KiB
C++
#include "lib/qtmaterialrippleoverlay.h"
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#include <QPainter>
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#include "lib/qtmaterialripple.h"
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namespace md
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{
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/*!
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* \class QtMaterialRippleOverlay
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* \internal
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*/
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RippleOverlay::RippleOverlay(QWidget *parent)
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: OverlayWidget(parent),
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m_useClip(false)
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{
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setAttribute(Qt::WA_TransparentForMouseEvents);
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setAttribute(Qt::WA_NoSystemBackground);
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}
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RippleOverlay::~RippleOverlay()
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{
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}
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void RippleOverlay::addRipple(Ripple *ripple)
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{
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ripple->setOverlay(this);
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m_ripples.push_back(ripple);
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ripple->start();
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connect(this, SIGNAL(destroyed(QObject*)), ripple, SLOT(stop()));
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connect(this, SIGNAL(destroyed(QObject*)), ripple, SLOT(deleteLater()));
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}
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void RippleOverlay::addRipple(const QPoint &position, qreal radius)
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{
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Ripple *ripple = new Ripple(position);
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ripple->setRadiusEndValue(radius);
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addRipple(ripple);
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}
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void RippleOverlay::removeRipple(Ripple *ripple)
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{
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if (m_ripples.removeOne(ripple)) {
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delete ripple;
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update();
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}
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}
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/*!
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* \reimp
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*/
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void RippleOverlay::paintEvent(QPaintEvent *event)
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{
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Q_UNUSED(event)
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QPainter painter(this);
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painter.setRenderHint(QPainter::Antialiasing);
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painter.setPen(Qt::NoPen);
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if (m_useClip) {
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painter.setClipPath(m_clipPath);
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}
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QList<Ripple *>::const_iterator i;
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for (i = m_ripples.begin(); i != m_ripples.end(); ++i) {
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paintRipple(&painter, *i);
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}
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}
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void RippleOverlay::paintRipple(QPainter *painter, Ripple *ripple)
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{
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const qreal radius = ripple->radius();
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const QPointF center = ripple->center();
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painter->setOpacity(ripple->opacity());
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painter->setBrush(ripple->brush());
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painter->drawEllipse(center, radius, radius);
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}
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}
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