Method paintEvent

ElaWidgetTools/ElaRollerPicker.cpp:194–223

}

void ElaRollerPicker::paintEvent(QPaintEvent* event)
{
    Q_D(ElaRollerPicker);
    QPainter painter(this);
    painter.save();
    painter.setRenderHints(QPainter::Antialiasing | QPainter::TextAntialiasing);
    // 边框和背景绘制
    QRect baseRect = rect();
    baseRect.adjust(1, 1, -1, -1);
    painter.setPen(ElaThemeColor(d->_themeMode, BasicBorder));
    painter.setBrush(underMouse() ? ElaThemeColor(d->_themeMode, BasicHover) : ElaThemeColor(d->_themeMode, BasicBase));
    painter.drawRoundedRect(baseRect, d->_pBorderRadius, d->_pBorderRadius);

    // Roller内容绘制
    int rollerXOffset = 0;
    for (int i = 0; i < d->_rollerPickerContainer->_rollerList.count(); i++)
    {
        auto roller = d->_rollerPickerContainer->_rollerList[i];
        painter.setPen(ElaThemeColor(d->_themeMode, BasicText));
        int rollerWidth = roller->width();
        painter.drawText(QRect(rollerXOffset, baseRect.y(), rollerWidth, baseRect.height()), Qt::AlignCenter, roller->getCurrentData());
        rollerXOffset += rollerWidth;
        if (i != d->_rollerPickerContainer->_rollerList.count() - 1)
        {
            painter.setPen(ElaThemeColor(d->_themeMode, BasicBorder));
            painter.drawLine(rollerXOffset, 0, rollerXOffset, baseRect.bottom());
        }
    }
    painter.restore();
}