C++ DIMENSION::AdjustDimensionDetails方法代码示例

static void BuildDimension( EDA_DRAW_PANEL* aPanel, wxDC* aDC,
                           const wxPoint& aPosition, bool aErase )
{
    PCB_SCREEN* screen   = (PCB_SCREEN*) aPanel->GetScreen();
    DIMENSION*  Dimension = (DIMENSION*) screen->GetCurItem();
    wxPoint     pos = aPanel->GetParent()->GetCrossHairPosition();

    if( Dimension == NULL )
        return;

    // Erase previous dimension.
    if( aErase )
    {
        Dimension->Draw( aPanel, aDC, GR_XOR );
    }

    Dimension->SetLayer( screen->m_Active_Layer );

    if( status_dimension == 1 )
    {
        Dimension->m_featureLineDO = pos;
        Dimension->m_crossBarF  = Dimension->m_featureLineDO;
        Dimension->AdjustDimensionDetails( );
    }
    else
    {
        wxPoint delta;
        int dx, dy;
        double angle, depl;
        delta = Dimension->m_featureLineDO - Dimension->m_featureLineGO;

        /* Calculating the direction of travel perpendicular to the selected axis. */
        angle = atan2( delta.y, delta.x ) + (M_PI / 2);

        delta = pos - Dimension->m_featureLineDO;
        depl   = ( delta.x * cos( angle ) ) + ( delta.y * sin( angle ) );
        dx = KiROUND( depl * cos( angle ) );
        dy = KiROUND( depl * sin( angle ) );
        Dimension->m_crossBarO.x = Dimension->m_featureLineGO.x + dx;
        Dimension->m_crossBarO.y = Dimension->m_featureLineGO.y + dy;
        Dimension->m_crossBarF.x = Dimension->m_featureLineDO.x + dx;
        Dimension->m_crossBarF.y = Dimension->m_featureLineDO.y + dy;

        Dimension->AdjustDimensionDetails( );
    }

    Dimension->Draw( aPanel, aDC, GR_XOR );
}

int DRAWING_TOOL::DrawDimension( const TOOL_EVENT& aEvent )
{
    DIMENSION* dimension = NULL;
    int width, maxThickness;

    // if one day it is possible to draw dimensions in the footprint editor,
    // then hereby I'm letting you know that this tool does not handle UR_MODEDIT undo yet
    assert( !m_editModules );

    // Add a VIEW_GROUP that serves as a preview for the new item
    KIGFX::VIEW_GROUP preview( m_view );
    m_view->Add( &preview );

    m_toolMgr->RunAction( COMMON_ACTIONS::selectionClear, true );
    m_controls->ShowCursor( true );
    m_controls->SetSnapping( true );

    Activate();
    m_frame->SetToolID( ID_PCB_DIMENSION_BUTT, wxCURSOR_PENCIL, _( "Add dimension" ) );

    enum DIMENSION_STEPS
    {
        SET_ORIGIN = 0,
        SET_END,
        SET_HEIGHT,
        FINISHED
    };
    int step = SET_ORIGIN;

    // Main loop: keep receiving events
    while( OPT_TOOL_EVENT evt = Wait() )
    {
        VECTOR2I cursorPos = m_controls->GetCursorPosition();

        if( evt->IsCancel() || evt->IsActivate() )
        {
            if( step != SET_ORIGIN )    // start from the beginning
            {
                preview.Clear();
                preview.ViewUpdate( KIGFX::VIEW_ITEM::GEOMETRY );

                delete dimension;
                step = SET_ORIGIN;
            }
            else
                break;

            if( evt->IsActivate() )  // now finish unconditionally
                break;
        }

        else if( evt->IsAction( &COMMON_ACTIONS::incWidth ) && step != SET_ORIGIN )
        {
            dimension->SetWidth( dimension->GetWidth() + WIDTH_STEP );
            preview.ViewUpdate( KIGFX::VIEW_ITEM::GEOMETRY );
        }

        else if( evt->IsAction( &COMMON_ACTIONS::decWidth ) && step != SET_ORIGIN )
        {
            int width = dimension->GetWidth();

            if( width > WIDTH_STEP )
            {
                dimension->SetWidth( width - WIDTH_STEP );
                preview.ViewUpdate( KIGFX::VIEW_ITEM::GEOMETRY );
            }
        }

        else if( evt->IsClick( BUT_LEFT ) )
        {
            switch( step )
            {
            case SET_ORIGIN:
                {
                    LAYER_ID layer = m_frame->GetScreen()->m_Active_Layer;

                    if( IsCopperLayer( layer ) || layer == Edge_Cuts )
                    {
                        DisplayInfoMessage( NULL, _( "Dimension not allowed on Copper or Edge Cut layers" ) );
                        --step;
                    }
                    else
                    {
                        // Init the new item attributes
                        dimension = new DIMENSION( m_board );
                        dimension->SetLayer( layer );
                        dimension->SetOrigin( wxPoint( cursorPos.x, cursorPos.y ) );
                        dimension->SetEnd( wxPoint( cursorPos.x, cursorPos.y ) );
                        dimension->Text().SetSize( m_board->GetDesignSettings().m_PcbTextSize );

                        width = m_board->GetDesignSettings().m_PcbTextWidth;
                        maxThickness = Clamp_Text_PenSize( width, dimension->Text().GetSize() );

                        if( width > maxThickness )
                            width = maxThickness;

                        dimension->Text().SetThickness( width );
                        dimension->SetWidth( width );
                        dimension->AdjustDimensionDetails();

//.........这里部分代码省略.........