def paintEvent(self, event):
super(BubbleLabel, self).paintEvent(event)
painter = QPainter(self)
painter.setRenderHint(QPainter.Antialiasing) # 抗锯齿
rectPath = QPainterPath() # 圆角矩形
triPath = QPainterPath() # 底部三角形
height = self.height() - 8 # 往上偏移8
rectPath.addRoundedRect(QRectF(0, 0, self.width(), height), 5, 5)
x = self.width() / 5 * 4
triPath.moveTo(x, height) # 移动到底部横线4/5处
# 画三角形
triPath.lineTo(x + 6, height + 8)
triPath.lineTo(x + 12, height)
rectPath.addPath(triPath) # 添加三角形到之前的矩形上
# 边框画笔
painter.setPen(QPen(self.BorderColor, 1, Qt.SolidLine,
Qt.RoundCap, Qt.RoundJoin))
# 背景画刷
painter.setBrush(self.BackgroundColor)
# 绘制形状
painter.drawPath(rectPath)
# 三角形底边绘制一条线保证颜色与背景一样
painter.setPen(QPen(self.BackgroundColor, 1,
Qt.SolidLine, Qt.RoundCap, Qt.RoundJoin))
painter.drawLine(x, height, x + 12, height)
def paint_waveform_arr(rect: QRect, wfm_arr: WFMArray) -> QPainterPath:
rect_w = rect.width()
rect_h = rect.height()
w_scale = rect_w - 1
h_scale = rect_h - 1
vmin, vmax = -20, 120
vsize = vmax - vmin
ypos = wfm_arr['ypos']
ypos = (wfm_arr['ypos'] * 100 / vmax * vsize - vmin) / vsize
ypos_w = (ypos * h_scale - h_scale) * -1
wfm_range = (wfm_arr['ypos'].min(), wfm_arr['ypos'].max())
ypos_range = (ypos.min(), ypos.max())
ypos_w_range = (ypos_w.min(), ypos_w.max())
# print(f'{wfm_range=}, {ypos_range=}, {ypos_w_range=}, {rect_h=}')
wfm_arr['ypos'] = ypos_w
h, w = wfm_arr.shape
wfm_arr['xpos'] *= w_scale
xy_arr = rfn.structured_to_unstructured(wfm_arr[['xpos', 'ypos']])
paths = QPainterPath()
for y in range(h):
path = QPainterPath()
y_arr = xy_arr[y]
for x in range(w):
xy = y_arr[x]
if x > 0:
path.lineTo(xy[0], xy[1])
else:
path.moveTo(xy[0], xy[1])
paths.addPath(path)
return paths
