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Hide SnackBar initially & guard against access of an empty list

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This commit is contained in:
Konstantinos Sideris 2018-05-08 23:38:57 +03:00
parent ebed87ea57
commit 7d809be79f
3 changed files with 24 additions and 20 deletions
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34
src/ui/SnackBar.cc
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@ -25,32 +25,35 @@ SnackBar::SnackBar(QWidget *parent)
font.setWeight(50);
setFont(font);
showTimer_ = QSharedPointer<QTimer>(new QTimer);
hideTimer_ = QSharedPointer<QTimer>(new QTimer);
hideTimer_->setSingleShot(true);
hideTimer_.setSingleShot(true);
auto offset_anim = tweeny::from(1.0f).to(0.0f).during(100).via(tweeny::easing::cubicOut);
connect(showTimer_.data(), &QTimer::timeout, this, [this, offset_anim]() mutable {
connect(&showTimer_, &QTimer::timeout, this, [this, offset_anim]() mutable {
if (offset_anim.progress() < 1.0f) {
offset_ = offset_anim.step(0.07f);
update();
} else {
showTimer_->stop();
hideTimer_->start(duration_);
showTimer_.stop();
hideTimer_.start(duration_);
offset_anim.seek(0.0f);
}
});
connect(hideTimer_.data(), SIGNAL(timeout()), this, SLOT(hideMessage()));
connect(&hideTimer_, SIGNAL(timeout()), this, SLOT(hideMessage()));
hide();
}
void
SnackBar::start()
{
if (messages_.empty())
return;
show();
raise();
showTimer_->start(10);
showTimer_.start(10);
}
void
@ -59,21 +62,22 @@ SnackBar::hideMessage()
stopTimers();
hide();
// Moving on to the next message.
messages_.removeFirst();
if (!messages_.empty())
// Moving on to the next message.
messages_.pop_front();
// Reseting the starting position of the widget.
offset_ = STARTING_OFFSET;
if (!messages_.isEmpty())
if (!messages_.empty())
start();
}
void
SnackBar::stopTimers()
{
showTimer_->stop();
hideTimer_->stop();
showTimer_.stop();
hideTimer_.stop();
}
void
@ -99,10 +103,10 @@ SnackBar::paintEvent(QPaintEvent *event)
{
Q_UNUSED(event)
if (messages_.isEmpty())
if (messages_.empty())
return;
auto message_ = messages_.first();
auto message_ = messages_.front();
QPainter p(this);
p.setRenderHint(QPainter::Antialiasing);