Function Plane

source/MRViewer/ImGuiHelpers.cpp:1433–1544

}

void Plane( MR::PlaneWidget& planeWidget, PlaneWidgetFlags flags )
{
    float dragspeed = planeWidget.box().diagonal() * 1e-3f;
    auto setDefaultPlane = [&] ( const MR::Vector3f& normal )
    {
        planeWidget.definePlane();
        planeWidget.updatePlane( MR::Plane3f::fromDirAndPt( normal, planeWidget.box().min + normal * dragspeed ) );
        if ( planeWidget.isInLocalMode() )
            planeWidget.setLocalShift( dragspeed );
    };
    ImGui::PushStyleVar( ImGuiStyleVar_ItemSpacing, { MR::cDefaultItemSpacing * UI::scale(), MR::cDefaultWindowPaddingY * UI::scale() } );
    ImGui::PushStyleVar( ImGuiStyleVar_ItemInnerSpacing, { MR::cDefaultItemSpacing * UI::scale(), MR::cDefaultItemSpacing * UI::scale() } );

    float p = ImGui::GetStyle().FramePadding.x;
    ImVec2 iconSize = { 32 * UI::scale(), 32 * UI::scale() };
    ImVec2 buttonSize = { ( GetContentRegionAvail().x - 3 * p ) / 4, 70.0f * UI::scale() };
    if ( MR::UI::buttonIcon( "Plane YZ", iconSize, _tr( "Plane YZ" ), buttonSize ) )
        setDefaultPlane( MR::Vector3f::plusX() );
    ImGui::SameLine( 0, p );
    if ( MR::UI::buttonIcon( "Plane XZ", iconSize, _tr( "Plane XZ" ), buttonSize ) )
        setDefaultPlane( MR::Vector3f::plusY() );
    ImGui::SameLine( 0, p );
    if ( MR::UI::buttonIcon( "Plane XY", iconSize, _tr( "Plane XY" ), buttonSize ) )
        setDefaultPlane( MR::Vector3f::plusZ() );
    ImGui::SameLine( 0, p );

    const bool importPlaneModeOld = planeWidget.importPlaneMode();
    if ( importPlaneModeOld )
        ImGui::PushStyleColor( ImGuiCol_Button, ImGui::GetStyleColorVec4( ImGuiCol_ButtonActive ) );

    if ( MR::UI::buttonIcon( "Plane Import", iconSize, _tr( "Import Plane" ), buttonSize ) )
    {
        planeWidget.setImportPlaneMode( !planeWidget.importPlaneMode() );
    }
    else if ( ImGui::IsMouseReleased( ImGuiMouseButton_Left ) && importPlaneModeOld == planeWidget.importPlaneMode() )
    {
        planeWidget.setImportPlaneMode( false );
    }
    if ( importPlaneModeOld )
        ImGui::PopStyleColor();

    if ( planeWidget.importPlaneMode() )
        ImGui::Text( "%s", _tr( "Click on the plane object in scene to import its parameters" ) );

    if ( !planeWidget.getPlaneObject() )
    {
        ImGui::PopStyleVar( 2 );
        return;
    }

    ImGui::PushStyleVar( ImGuiStyleVar_FramePadding, { ImGui::GetStyle().FramePadding.x, MR::cGradientButtonFramePadding * UI::scale() } );

    auto localShift = planeWidget.getLocalShift();
    auto planeBackUp = planeWidget.getPlane();
    auto plane = planeWidget.getPlane();

    ImGui::SetNextItemWidth( 200.0f * UI::scale() );
    UI::drag<NoUnit>( _tr( "Normal" ), plane.n, 0.001f );