qt-material-widgets/components/toggle.cpp

126 lines
2.9 KiB
C++

#include <QAbstractButton>
#include <QPropertyAnimation>
#include <QEvent>
#include <QDebug>
#include <QPainter>
#include "toggle.h"
#include "../lib/rippleoverlay.h"
#include "../lib/customshadoweffect.h"
Thumb::Thumb(Toggle *parent)
: QWidget(parent),
_toggle(parent),
_animation(new QPropertyAnimation(this)),
_progress(0)
{
parent->installEventFilter(this);
_animation->setPropertyName("progress");
_animation->setTargetObject(this);
_animation->setDuration(350);
_animation->setStartValue(0);
_animation->setEndValue(1);
}
Thumb::~Thumb()
{
}
bool Thumb::eventFilter(QObject *obj, QEvent *event)
{
const QEvent::Type type = event->type();
if (QEvent::Resize == type || QEvent::Move == type) {
setGeometry(parentWidget()->rect().adjusted(9, 9, -9, -9));
}
return QWidget::eventFilter(obj, event);
}
void Thumb::mouseReleaseEvent(QMouseEvent *event)
{
Q_UNUSED(event)
emit clicked();
if (_toggle->isChecked()) {
_animation->setDirection(QAbstractAnimation::Forward);
if (QAbstractAnimation::Running != _animation->state()) {
_animation->setEasingCurve(QEasingCurve::OutCubic);
}
} else {
_animation->setDirection(QAbstractAnimation::Backward);
if (QAbstractAnimation::Running != _animation->state()) {
_animation->setEasingCurve(QEasingCurve::InCubic);
}
}
_animation->start();
}
void Thumb::paintEvent(QPaintEvent *event)
{
Q_UNUSED(event)
QPainter painter(this);
painter.setRenderHint(QPainter::Antialiasing);
/*
painter.save();
QPen pen;
pen.setColor(Qt::red);
painter.setPen(pen);
painter.drawRect(rect());
painter.restore();
*/
QBrush brush;
brush.setStyle(Qt::SolidPattern);
brush.setColor(QColor(120, 120, 120));
painter.setBrush(brush);
painter.setPen(Qt::NoPen);
const int d = qMin(width(), height());
painter.drawEllipse(5 + _progress*(static_cast<qreal>(width()-d)), 5, d-10, d-10);
}
Toggle::Toggle(QWidget *parent)
: QAbstractButton(parent),
_overlay(new RippleOverlay(this)),
_thumb(new Thumb(this))
{
setCheckable(true);
CustomShadowEffect *effect = new CustomShadowEffect;
effect->setDistance(0);
effect->setBlurRadius(6);
effect->setColor(QColor(60, 60, 60));
_thumb->setGraphicsEffect(effect);
_thumb->installEventFilter(this);
connect(_thumb, SIGNAL(clicked()), this, SLOT(toggle()));
}
Toggle::~Toggle()
{
}
void Toggle::paintEvent(QPaintEvent *event)
{
Q_UNUSED(event)
QPainter painter(this);
painter.setRenderHint(QPainter::Antialiasing);
const int h = height()/2;
QBrush brush;
brush.setColor(QColor(180, 180, 180));
brush.setStyle(Qt::SolidPattern);
painter.setBrush(brush);
painter.setPen(Qt::NoPen);
const QRect r(0, h-h/2, width(), h);
painter.drawRoundedRect(r.adjusted(14, 4, -14, -4), h/2-4, h/2-4);
}