def paintEvent(self, event: QPaintEvent):
_start = perf_counter()
num = self.num_tabs
selected = self.selected
arrow_width = self._arrow_width
height = self.height()
width = self._button_width
first_width = self._first_button_width
button = self._button_path
button_box = QRect(0, 0, width + arrow_width, height)
first_box = QRect(0, 0, first_width + arrow_width, height)
icon_area = QRect(arrow_width + 10, 0, max(48, width / 2), height)
text_box = QRect(arrow_width, 0, width - arrow_width, height)
text_flags = Qt.AlignCenter | Qt.AlignVCenter
states = self.states
painter = QPainter(self)
region = event.region()
painter.setClipRegion(region)
#torender = self._tabs_within(event.region())
#print("regions:")
#for rect in event.region().rects():
# print(" - ", rect)
#painter.setPen(Qt.NoPen)
painter.setPen(
QPen(Qt.black, 2, Qt.SolidLine, Qt.RoundCap, Qt.RoundJoin))
titleFont = painter.font()
titleFont.setPointSizeF(14)
titleFont.setBold(True)
painter.setFont(titleFont)
painter.translate(num * width + first_width, 0)
if region.intersects(painter.transform().mapRect(button_box)):
painter.setBrush(states[num].get_color(num == selected))
painter.drawPath(self._last_button_path)
for i in reversed(range(num)):
painter.translate(-width, 0)
if not region.intersects(painter.transform().mapRect(button_box)):
continue
painter.setBrush(states[i].get_color(i == selected))
painter.drawPath(button)
if states[i].state == State.ACTIVE:
painter.save()
painter.setPen(Qt.NoPen)
gw = (width + self._arrow_width) * 2
gradient = QLinearGradient(0, 0, gw, 0)
value = self._working_anim.value
gradient.setColorAt(max(0.0, value - 0.2),
QColor(255, 255, 255, 0))
gradient.setColorAt(value, QColor(255, 255, 255, 180))
gradient.setColorAt(min(1.0, value + 0.2),
QColor(255, 255, 255, 0))
brush = QBrush(gradient)
brush.setTransform(brush.transform().translate(-gw / 4, 0))
gradient_height = int(height * 0.2)
painter.setBrush(brush)
#painter.setClipRect(0, 0, width+self._arrow_width, gradient_height)
#painter.drawPath(button)
#painter.setClipRect(0, height-gradient_height, width+self._arrow_width, gradient_height)
painter.drawPath(button)
self._active_box = painter.transform().mapRect(button_box)
painter.restore()
#if states[i].icon:
# states[i].icon.paint(painter, icon_area)
text = states[i].text
if text:
_, _, short = text.rpartition('-')
painter.drawText(text_box, text_flags, short.capitalize())
if region.intersects(first_box):
painter.resetTransform()
painter.setBrush(State.UNKNOWN.get_color(-1 == selected))
painter.drawPath(self._first_button_path)
if self.is_running:
icon = self.style().standardIcon(QStyle.SP_MediaStop)
else:
icon = self.style().standardIcon(QStyle.SP_MediaPlay)
size = min(self._first_button_width, self.height()) * 0.8
painter.translate(5, (self.height() - size) / 2)
icon.paint(painter, QRect(0, 0, size, size))
_end = perf_counter()
if not self._paint_times:
self._paint_times = times = []
else:
times = self._paint_times
times.append(_end - _start)
if len(times) > 60:
avg = sum(times) / len(times) * 1000000
print("Average render time %.2fns" % (avg, ))
self._paint_times = None
