1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
|
#include "QtAwesomeAnim.h"
#include <QPainter>
#include <QRect>
#include <QTimer>
#include <QWidget>
#include <cmath>
namespace fa {
QtAwesomeAnimation::QtAwesomeAnimation(QWidget* parentWidget, int interval, int step)
: parentWidgetRef_(parentWidget), timer_(nullptr), interval_(interval), step_(step), angle_(0.0f)
{
}
void QtAwesomeAnimation::setup(QPainter& painter, const QRect& rect)
{
// first time set the timer
if (!timer_) {
timer_ = new QTimer();
connect(timer_, SIGNAL(timeout()), this, SLOT(update()));
timer_->start(interval_);
}
else {
//timer, angle, self.step = self.info[self.parent_widget]
float x_center = rect.width() * 0.5f;
float y_center = rect.height() * 0.5f;
painter.translate(static_cast<qreal>(x_center), static_cast<qreal>(y_center));
painter.rotate(static_cast<qreal>(angle_));
painter.translate(static_cast<qreal>(-x_center), -static_cast<qreal>(y_center));
}
}
void QtAwesomeAnimation::update()
{
angle_ += step_;
angle_ = std::fmod(static_cast<float>(angle_), 360.0f);
parentWidgetRef_->update();
}
}// namespace fa
|
