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modern-linbo-gui/sources/qmodernprogressbar.cpp

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#include "../headers/qmodernprogressbar.h"
QModernProgressBar::QModernProgressBar(QWidget* parent) : QProgressBar(parent)
{
this->refreshTimer = new QTimer();
this->refreshTimer->setSingleShot(false);
this->refreshTimer->setInterval(400);
connect(this->refreshTimer, SIGNAL(timeout()), this, SLOT(updateIndeterminate()));
this->indeterminateAnimtion = new QPropertyAnimation(this, "value");
this->indeterminateAnimtion->setDuration(2000);
this->indeterminateAnimtion->setStartValue(0);
this->indeterminateAnimtion->setEndValue(1000);
this->indeterminateAnimtion->setEasingCurve(QEasingCurve(QEasingCurve::InOutQuad));
this->indeterminateAnimtion->setLoopCount(-1);
this->setValue(0);
}
void QModernProgressBar::setIndeterminate(bool indeterminate) {
if(this->indeterminate == indeterminate)
return;
this->indeterminate = indeterminate;
if(this->indeterminate) {
this->preIndeterminateValue = this->value();
// finer steps, so the Animation is fluid
this->setMinimum(0);
this->setMaximum(1000);
this->indeterminateAnimtion->start();
}
else {
// reset minimum and maximum
this->setMinimum(0);
this->setMaximum(100);
this->setValue(this->preIndeterminateValue);
this->indeterminateAnimtion->stop();
}
}
bool QModernProgressBar::getIndeterminate() {
return this->indeterminate;
}
void QModernProgressBar::updateIndeterminate() {
qDebug() << "update indeterminate";
}
void QModernProgressBar::paintEvent(QPaintEvent *e) {
QPainter painter;
painter.begin(this);
// background
painter.fillRect(e->rect(), QColor("#c7c7c7"));
// progress
if(this->indeterminate) {
int maximum = this->maximum() / 2;
if(this->value() <= maximum)
// for the first half -> fill from left
painter.fillRect(QRect(0,0, e->rect().width() * double(double(this->value()) / double(maximum)), e->rect().height()), QColor(0,0,0));
else
// for the second half -> empty from right
painter.fillRect(QRect(e->rect().width() * double(double(this->value()- (maximum)) / double(maximum)),0, e->rect().width(), e->rect().height()), QColor(0,0,0));
}
else
painter.fillRect(QRect(0,0, e->rect().width() * float(float(this->value()) / float(this->maximum())), e->rect().height()), QColor(0,0,0));
painter.end();
QWidget::paintEvent(e);
}