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Make the spin animator a little parametrizable

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Kovid Goyal 2020-12-04 18:32:01 +05:30
parent 4ce301c1b0
commit 3973d843e5
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GPG Key ID: 06BC317B515ACE7C
3 changed files with 19 additions and 14 deletions
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16
src/calibre/gui2/progress_indicator/QProgressIndicator.h
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@ -14,7 +14,7 @@ class SpinAnimator: public QObject {
Q_PROPERTY(int arc_rotation READ get_arc_rotation WRITE set_arc_rotation)
Q_PROPERTY(int overall_rotation READ get_overall_rotation WRITE set_overall_rotation)
public:
SpinAnimator(QObject* parent = 0) :
SpinAnimator(QObject* parent = 0, const int speed_factor=300) :
QObject(parent),
m_arc_length(0),
m_arc_rotation(0),
@ -24,7 +24,7 @@ public:
{
QPropertyAnimation *a;
#define S(property, duration) a = new QPropertyAnimation(this, QByteArray(#property), this); a->setEasingCurve(QEasingCurve::InOutCubic); a->setDuration(duration); a->setLoopCount(-1); m_animation.addAnimation(a);
S(arc_length, 1400);
S(arc_length, 7 * speed_factor);
const float arc_length_max = 0.734f, arc_length_min = 0.01f;
a->setStartValue(arc_length_min);
a->setKeyValueAt(0.25, arc_length_min);
@ -32,14 +32,14 @@ public:
a->setKeyValueAt(0.75, arc_length_max);
a->setEndValue(arc_length_min);
S(arc_rotation, 1400);
S(arc_rotation, 7 * speed_factor);
a->setStartValue(0);
a->setKeyValueAt(0.25, 0);
a->setKeyValueAt(0.5, 45);
a->setKeyValueAt(0.75, 45);
a->setEndValue(360);
S(overall_rotation, 2000);
S(overall_rotation, 10 * speed_factor);
a->setStartValue(0);
a->setEndValue(360);
#undef S
@ -48,15 +48,15 @@ public:
void start() { m_animation.start(); }
void stop() { m_animation.stop(); }
bool is_running() { return m_animation.state() == QAbstractAnimation::Running; }
void draw(QPainter &painter, QRect bounds, const QColor &color) {
void draw(QPainter &painter, QRect bounds, const QColor &color, const float thickness=0.f) {
m_has_pending_updates = false;
painter.save();
painter.setRenderHint(QPainter::Antialiasing);
QRectF rect(bounds);
float thickness = std::max(3.f, std::min((float)rect.width() / 10.f, 24.f));
float width = thickness > 0.f ? thickness : std::max(3.f, std::min((float)rect.width() / 10.f, 24.f));
QPen pen(color);
pen.setWidthF(thickness);
float ht = thickness / 2 + 1;
pen.setWidthF(width);
float ht = width / 2 + 1;
rect.adjust(ht, ht, -ht, -ht);
pen.setCapStyle(Qt::RoundCap);
painter.setPen(pen);

4
src/calibre/gui2/progress_indicator/QProgressIndicator.sip
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@ -19,11 +19,11 @@ class SpinAnimator : QObject {
%End
public:
SpinAnimator(QWidget *parent /TransferThis/ = 0);
SpinAnimator(QWidget *parent /TransferThis/ = 0, int speed_factor=300);
float get_arc_length() const ;
int get_arc_rotation() const ;
int get_overall_rotation() const ;
void draw(QPainter &painter, QRect bounds, const QColor &color);
void draw(QPainter &painter, QRect bounds, const QColor &color, const float thickness=0.f);
void start();
void stop();
bool is_running();

13
src/calibre/gui2/progress_indicator/__init__.py
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@ -95,7 +95,7 @@ class WaitLayout(QStackedLayout):
def develop():
from PyQt5.Qt import QPalette, QPainter, QRect
from PyQt5.Qt import QPalette, QPainter
from calibre.gui2 import Application
from calibre_extensions.progress_indicator import SpinAnimator
@ -109,14 +109,19 @@ def develop():
def paintEvent(self, ev):
p = QPainter(self)
pal = self.palette()
self.a.draw(p, QRect(0, 0, 64, 64), pal.color(QPalette.ColorRole.WindowText))
self.a.draw(p, self.rect(), pal.color(QPalette.ColorRole.WindowText))
p.end()
app = Application([])
d = QDialog()
d.resize(64, 64)
l = QVBoxLayout(d)
w = Widget()
w.show()
l.addWidget(w)
w.a.start()
app.exec_()
d.exec_()
del d
del app
if __name__ == '__main__':