Method drawSmallButtonsSet_

source/MRViewer/MRRibbonMenu.cpp:1295–1350

}

void RibbonMenu::drawSmallButtonsSet_( const std::vector<std::string>& group, int setFrontIndex, int setLength, bool withText )
{
    assert( setFrontIndex >= 0 );
    assert( setLength <= 3 );
    assert( setLength > 0 );
    assert( setFrontIndex + setLength <= group.size() );

    const auto& style = ImGui::GetStyle();

    const float cIconSize = cSmallIconSize * UI::scale();

    float maxSetWidth = 0.0f;
    std::array<RibbonButtonDrawer::ButtonItemWidth, 3> widths;
    std::array<const MenuItemInfo*, 3> items{ nullptr,nullptr ,nullptr };
    auto type = withText ? DrawButtonParams::SizeType::SmallText : DrawButtonParams::SizeType::Small;
    for ( int i = setFrontIndex; i < setFrontIndex + setLength; ++i )
    {
        auto it = RibbonSchemaHolder::schema().items.find( group[i] );
        if ( it == RibbonSchemaHolder::schema().items.end() )
            continue; // TODO: assert or log

        widths[i - setFrontIndex] = buttonDrawer_.calcItemWidth( it->second, type );
        auto sumWidth = widths[i - setFrontIndex].baseWidth + widths[i - setFrontIndex].additionalWidth;
        items[i - setFrontIndex] = &it->second;
        if ( sumWidth > maxSetWidth )
            maxSetWidth = sumWidth;
    }
    ImVec2 setSize;

    auto availReg = ImGui::GetContentRegionAvail();

    setSize.x = maxSetWidth;

    setSize.y = availReg.y - 2 * style.WindowPadding.y;

    ImVec2 smallItemSize;
    smallItemSize.x = setSize.x;
    smallItemSize.y = std::min( cIconSize + 2 * style.WindowPadding.y, setSize.y / 3.0f );
    ImGui::SetCursorPosY( ImGui::GetCursorPosY() + availReg.y * 0.5f - setSize.y * 0.5f - ImGui::GetStyle().CellPadding.y * 0.5f );

    float spaceY = ( setSize.y - 3.0f * smallItemSize.y ) * 0.5f;

    ImGui::BeginChild( ( "##SmallSet" + group[setFrontIndex] ).c_str(), setSize );
    auto basePosY = ImGui::GetCursorPosY();
    for ( int i = setFrontIndex; i < setFrontIndex + setLength; ++i )
    {
        smallItemSize.x = widths[i - setFrontIndex].baseWidth;
        if ( withText )
            smallItemSize.x += widths[i - setFrontIndex].additionalWidth;

        ImGui::SetCursorPosY( basePosY + float( i - setFrontIndex ) * ( spaceY + smallItemSize.y ) );
        buttonDrawer_.drawButtonItem( *items[i - setFrontIndex], { type,smallItemSize,cSmallIconSize } );
    }

    ImGui::EndChild();
}