Method paintEvent

ElaWidgetTools/ElaMessageBar.cpp:168–227

}

void ElaMessageBar::paintEvent(QPaintEvent* event)
{
    Q_D(ElaMessageBar);
    QPainter painter(this);
    painter.setOpacity(d->_pOpacity);
    painter.setRenderHints(QPainter::SmoothPixmapTransform | QPainter::Antialiasing | QPainter::TextAntialiasing);
    // 高性能阴影
    eTheme->drawEffectShadow(&painter, rect(), d->_shadowBorderWidth, d->_borderRadius);

    // 背景和图标绘制
    painter.save();
    painter.setPen(d->_themeMode == ElaThemeType::Light ? QColor(0xBE, 0xBA, 0xBE) : QColor(0x52, 0x50, 0x52));
    switch (d->_messageMode)
    {
    case ElaMessageBarType::Success:
    {
        d->_drawSuccess(&painter);
        break;
    }
    case ElaMessageBarType::Warning:
    {
        d->_drawWarning(&painter);
        break;
    }
    case ElaMessageBarType::Information:
    {
        d->_drawInformation(&painter);
        break;
    }
    case ElaMessageBarType::Error:
    {
        d->_drawError(&painter);
        break;
    }
    }
    // 文字绘制
    // 标题
    QFont font = this->font();
    font.setWeight(QFont::Bold);
    font.setPixelSize(16);
    painter.setFont(font);
    int titleTextWidth = painter.fontMetrics().horizontalAdvance(d->_title) + 1;
    if (titleTextWidth > 100)
    {
        titleTextWidth = 100;
    }
    int textFlags = Qt::AlignLeft | Qt::AlignVCenter | Qt::TextWordWrap | Qt::TextWrapAnywhere;
    painter.drawText(QRect(d->_leftPadding + d->_titleLeftSpacing, -1, titleTextWidth, height()), textFlags, d->_title);
    // 正文
    font.setWeight(QFont::Light);
    font.setPixelSize(15);
    painter.setFont(font);
    painter.drawText(QRect(d->_leftPadding + d->_titleLeftSpacing + titleTextWidth + d->_textLeftSpacing, 0, width() - (d->_leftPadding + d->_titleLeftSpacing + titleTextWidth + d->_textLeftSpacing + d->_closeButtonWidth + d->_closeButtonLeftRightMargin / 2), height() - d->_timePercentHeight), textFlags, d->_text);
    int textHeight = painter.fontMetrics().boundingRect(QRect(d->_leftPadding + d->_titleLeftSpacing + titleTextWidth + d->_textLeftSpacing, 0, width() - (d->_leftPadding + d->_titleLeftSpacing + titleTextWidth + d->_textLeftSpacing + d->_closeButtonWidth + d->_closeButtonLeftRightMargin), height()), textFlags, d->_text).height();
    if (textHeight >= minimumHeight() - 20)
    {
        setMinimumHeight(textHeight + 20);
    }