prompts.py 文件源码

def draw_ticks(self, painter):
        w = self.width()
        h = self.height()

        tick_step = int(round(w / self._ticks))

        f1 = int(((w / float(self._ticks*1000)) * self._transitions[0]*1000))
        f2 = int(((w / float(self._ticks*1000)) * self._transitions[1]*1000))

        # the contract indicator window
        painter.setPen(QtGui.QColor(0, 0, 0, 0))
        painter.setBrush(QtGui.QColor(180, 80, 80, 140))
        painter.drawRect(f1, 0, f2-f1, h)

        painter.setPen(self.palette.color(QtGui.QPalette.Text))
        painter.setFont(self.font())

        # draw the "contact" and "rest" text
        for t, l in zip(self._transitions, ['contract', 'rest']):
            x = int(((w / float(self._ticks*1000)) * (t*1000.)))
            metrics = painter.fontMetrics()
            fw = metrics.width(l)
            painter.drawText(x-fw/2, h/2, l)

        # draw the ticks marking each second
        j = 0
        for i in range(tick_step, self._ticks*tick_step, tick_step):
            painter.drawLine(i, h-5, i, h)
            metrics = painter.fontMetrics()
            fw = metrics.width(self.tick_labels[j])
            painter.drawText(i-fw/2, h-7, self.tick_labels[j])
            j += 1