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#include <QEventTransition>
#include <QPropertyAnimation>
#include "RaisedButton.h"
void RaisedButton::init()
{
shadow_state_machine_ = new QStateMachine(this);
normal_state_ = new QState;
pressed_state_ = new QState;
effect_ = new QGraphicsDropShadowEffect;
effect_->setBlurRadius(7);
effect_->setOffset(QPointF(0, 2));
effect_->setColor(QColor(0, 0, 0, 75));
setBackgroundMode(Qt::OpaqueMode);
setMinimumHeight(42);
setGraphicsEffect(effect_);
setBaseOpacity(0.3);
shadow_state_machine_->addState(normal_state_);
shadow_state_machine_->addState(pressed_state_);
normal_state_->assignProperty(effect_, "offset", QPointF(0, 2));
normal_state_->assignProperty(effect_, "blurRadius", 7);
pressed_state_->assignProperty(effect_, "offset", QPointF(0, 5));
pressed_state_->assignProperty(effect_, "blurRadius", 29);
QAbstractTransition *transition;
transition = new QEventTransition(this, QEvent::MouseButtonPress);
transition->setTargetState(pressed_state_);
normal_state_->addTransition(transition);
transition = new QEventTransition(this, QEvent::MouseButtonDblClick);
transition->setTargetState(pressed_state_);
normal_state_->addTransition(transition);
transition = new QEventTransition(this, QEvent::MouseButtonRelease);
transition->setTargetState(normal_state_);
pressed_state_->addTransition(transition);
QPropertyAnimation *animation;
animation = new QPropertyAnimation(effect_, "offset", this);
animation->setDuration(100);
shadow_state_machine_->addDefaultAnimation(animation);
animation = new QPropertyAnimation(effect_, "blurRadius", this);
animation->setDuration(100);
shadow_state_machine_->addDefaultAnimation(animation);
shadow_state_machine_->setInitialState(normal_state_);
shadow_state_machine_->start();
}
RaisedButton::RaisedButton(QWidget *parent)
: FlatButton(parent)
{
init();
}
RaisedButton::RaisedButton(const QString &text, QWidget *parent)
: FlatButton(parent)
{
init();
setText(text);
}
RaisedButton::~RaisedButton()
{
}
bool RaisedButton::event(QEvent *event)
{
if (QEvent::EnabledChange == event->type()) {
if (isEnabled()) {
shadow_state_machine_->start();
effect_->setEnabled(true);
} else {
shadow_state_machine_->stop();
effect_->setEnabled(false);
}
}
return FlatButton::event(event);
}
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