Method calcItemWidth

source/MRViewer/MRRibbonButtonDrawer.cpp:211–253

}

RibbonButtonDrawer::ButtonItemWidth RibbonButtonDrawer::calcItemWidth( const MenuItemInfo& item, DrawButtonParams::SizeType sizeType ) const
{
    ButtonItemWidth res;
    if ( sizeType == DrawButtonParams::SizeType::Big )
    {
        const float cMinItemSize = cRibbonItemMinWidth * UI::scale();

        float maxTextWidth = 0.f;
        for ( const auto& i : item.captionSize.splitInfo )
            maxTextWidth = std::max( maxTextWidth, i.second );

        res.baseWidth = maxTextWidth + 2 * cRibbonButtonWindowPaddingX * UI::scale();

        if ( item.item->type() == RibbonItemType::ButtonWithDrop )
        {
            auto additionalSize = 3 * cSmallIconSize * UI::scale();
            if ( cMinItemSize - res.baseWidth < additionalSize )
                res.baseWidth += additionalSize;
        }

        if ( res.baseWidth < cMinItemSize )
            res.baseWidth = cMinItemSize;
        return res;
    }
    else if ( sizeType == DrawButtonParams::SizeType::SmallText )
    {
        res.baseWidth = ( cSmallIconSize +
                          2.0f * cRibbonButtonWindowPaddingX +
                          2.0f * cRibbonItemInterval ) * UI::scale() +
            item.captionSize.baseSize;

        if ( item.item->type() == RibbonItemType::ButtonWithDrop )
            res.additionalWidth = cSmallItemDropSizeModifier * ( cSmallIconSize + 2.0f * cRibbonButtonWindowPaddingX ) * UI::scale();
    }
    else
    {
        res.baseWidth = ( cSmallIconSize + 2.0f * cRibbonButtonWindowPaddingX ) * UI::scale();

        if ( item.item->type() == RibbonItemType::ButtonWithDrop )
            res.additionalWidth = cSmallItemDropSizeModifier * res.baseWidth;
    }
    return res;
}

void RibbonButtonDrawer::drawButtonItem( const MenuItemInfo& item, const DrawButtonParams& params ) const
{