C++ kigfx::VIEW类代码示例

int PCBNEW_CONTROL::PanControl( const TOOL_EVENT& aEvent )
{
    long type = aEvent.Parameter<long>();
    KIGFX::VIEW* view = getView();
    GRID_HELPER gridHelper( m_frame );
    VECTOR2D center = view->GetCenter();
    VECTOR2I gridSize = gridHelper.GetGrid() * 10;

    switch( type )
    {
        case COMMON_ACTIONS::CURSOR_UP:
            center -= VECTOR2D( 0, gridSize.y );
            break;

        case COMMON_ACTIONS::CURSOR_DOWN:
            center += VECTOR2D( 0, gridSize.y );
            break;

        case COMMON_ACTIONS::CURSOR_LEFT:
            center -= VECTOR2D( gridSize.x, 0 );
            break;

        case COMMON_ACTIONS::CURSOR_RIGHT:
            center += VECTOR2D( gridSize.x, 0 );
            break;

        default:
            assert( false );
            break;
    }

    view->SetCenter( center );

    return 0;
}

int PCBNEW_CONTROL::ZoomFitScreen( const TOOL_EVENT& aEvent )
{
    KIGFX::VIEW* view = getView();
    EDA_DRAW_PANEL_GAL* galCanvas = m_frame->GetGalCanvas();
    BOARD* board = getModel<BOARD>();
    board->ComputeBoundingBox();

    BOX2I boardBBox = board->ViewBBox();
    VECTOR2D scrollbarSize = VECTOR2D( galCanvas->GetSize() - galCanvas->GetClientSize() );
    VECTOR2D screenSize = view->ToWorld( galCanvas->GetClientSize(), false );

    if( boardBBox.GetWidth() == 0 || boardBBox.GetHeight() == 0 )
    {
        // Empty view
        view->SetScale( 17.0 );     // works fine for the standard worksheet frame

        view->SetCenter( screenSize / 2.0 );
    }
    else
    {
        VECTOR2D vsize = boardBBox.GetSize();
        double scale = view->GetScale() / std::max( fabs( vsize.x / screenSize.x ),
                                                    fabs( vsize.y / screenSize.y ) );

        view->SetScale( scale );
        view->SetCenter( boardBBox.Centre() );
    }


    // Take scrollbars into account
    VECTOR2D worldScrollbarSize = view->ToWorld( scrollbarSize, false );
    view->SetCenter( view->GetCenter() + worldScrollbarSize / 2.0 );

    return 0;
}

int PCBNEW_CONTROL::ZoomPreset( const TOOL_EVENT& aEvent )
{
    unsigned int idx = aEvent.Parameter<long>();
    std::vector<double>& zoomList = m_frame->GetScreen()->m_ZoomList;
    KIGFX::VIEW* view = m_frame->GetGalCanvas()->GetView();
    KIGFX::GAL* gal = m_frame->GetGalCanvas()->GetGAL();

    m_frame->SetPresetZoom( idx );

    if( idx == 0 )      // Zoom Auto
    {
        return ZoomFitScreen( aEvent );
    }
    else if( idx >= zoomList.size() )
    {
        assert( false );
        return 0;
    }

    double selectedZoom = zoomList[idx];
    double zoomFactor = gal->GetWorldScale() / gal->GetZoomFactor();
    view->SetScale( 1.0 / ( zoomFactor * selectedZoom ) );

    return 0;
}

/* Handles the selection of tools, menu, and popup menu commands.
 */
void PL_EDITOR_FRAME::Process_Special_Functions( wxCommandEvent& event )
{
    wxCommandEvent cmd( wxEVT_COMMAND_MENU_SELECTED );
    cmd.SetEventObject( this );

    switch( event.GetId() )
    {
    case wxID_PREFERENCES:
        ShowPreferences( PlEditorHotkeysDescr, PlEditorHotkeysDescr, wxT( "pl_editor" ) );
        break;

    case ID_PREFERENCES_HOTKEY_SHOW_CURRENT_LIST:
        DisplayHotkeyList( this, PlEditorHotkeysDescr );
        break;

    case ID_SELECT_PAGE_NUMBER:
    {
        KIGFX::VIEW* view = GetGalCanvas()->GetView();
        view->SetLayerVisible( LAYER_WORKSHEET_PAGE1, m_pageSelectBox->GetSelection() == 0 );
        view->SetLayerVisible( LAYER_WORKSHEET_PAGEn, m_pageSelectBox->GetSelection() == 1 );
        m_canvas->Refresh();
    }
        break;

    default:
        wxMessageBox( wxT( "PL_EDITOR_FRAME::Process_Special_Functions error" ) );
        break;
    }
}

/*
 * Update variables with new options
 */
bool PANEL_PCBNEW_DISPLAY_OPTIONS::TransferDataFromWindow()
{
    PCB_DISPLAY_OPTIONS* displ_opts = (PCB_DISPLAY_OPTIONS*) m_frame->GetDisplayOptions();

    displ_opts->m_ShowTrackClearanceMode = UTIL::GetValFromConfig(
            traceClearanceSelectMap, m_OptDisplayTracksClearance->GetSelection() );

    displ_opts->m_DisplayPadIsol = m_OptDisplayPadClearence->GetValue();
    displ_opts->m_DisplayPadNum = m_OptDisplayPadNumber->GetValue();

    m_frame->SetElementVisibility( LAYER_NO_CONNECTS, m_OptDisplayPadNoConn->GetValue() );

    displ_opts->m_DisplayNetNamesMode = m_ShowNetNamesOption->GetSelection();

    displ_opts->m_DisplayRatsnestLinesCurved = m_OptDisplayCurvedRatsnestLines->GetValue();

    m_galOptsPanel->TransferDataFromWindow();

    // Apply changes to the GAL
    KIGFX::VIEW* view = m_frame->GetGalCanvas()->GetView();
    KIGFX::PCB_PAINTER* painter = static_cast<KIGFX::PCB_PAINTER*>( view->GetPainter() );
    KIGFX::PCB_RENDER_SETTINGS* settings = painter->GetSettings();
    settings->LoadDisplayOptions( displ_opts, m_frame->ShowPageLimits() );
    view->RecacheAllItems();
    view->MarkTargetDirty( KIGFX::TARGET_NONCACHED );

    m_frame->GetCanvas()->Refresh();

    return true;
}

int PCBNEW_CONTROL::ZoomCenter( const TOOL_EVENT& aEvent )
{
    KIGFX::VIEW* view = m_frame->GetGalCanvas()->GetView();
    view->SetCenter( getViewControls()->GetCursorPosition() );

    return 0;
}

bool InvokeDXFDialogBoardImport( PCB_BASE_FRAME* aCaller )
{
    DIALOG_DXF_IMPORT dlg( aCaller );
    bool success = ( dlg.ShowModal() == wxID_OK );

    if( success )
    {
        const std::list<BOARD_ITEM*>& list = dlg.GetImportedItems();
        PICKED_ITEMS_LIST picklist;

        BOARD* board = aCaller->GetBoard();
        KIGFX::VIEW* view = aCaller->GetGalCanvas()->GetView();

        std::list<BOARD_ITEM*>::const_iterator it, itEnd;
        for( it = list.begin(), itEnd = list.end(); it != itEnd; ++it )
        {
            BOARD_ITEM* item = *it;
            board->Add( item );

            ITEM_PICKER itemWrapper( item, UR_NEW );
            picklist.PushItem( itemWrapper );

            if( aCaller->IsGalCanvasActive() )
                view->Add( item );
        }

        aCaller->SaveCopyInUndoList( picklist, UR_NEW, wxPoint( 0, 0 ) );
        aCaller->OnModify();
    }

    return success;
}

void PCB_LAYER_WIDGET::OnRenderColorChange( int aId, COLOR4D aColor )
{
    wxASSERT( aId > GAL_LAYER_ID_START && aId < GAL_LAYER_ID_END );

    myframe->Settings().Colors().SetItemColor( static_cast<GAL_LAYER_ID>( aId ), aColor );

    EDA_DRAW_PANEL_GAL* galCanvas = myframe->GetGalCanvas();

    if( galCanvas && myframe->IsGalCanvasActive() )
    {
        if( aId == LAYER_GRID )
            galCanvas->GetGAL()->SetGridColor( aColor );

        KIGFX::VIEW* view = galCanvas->GetView();
        view->GetPainter()->GetSettings()->ImportLegacyColors( &myframe->Settings().Colors() );
        view->MarkTargetDirty( KIGFX::TARGET_NONCACHED );   // useful to update rastnest
        view->UpdateLayerColor( aId );

        // plated-through-holes don't have their own color; they use the background color
        if( aId == LAYER_PCB_BACKGROUND )
            view->UpdateLayerColor( LAYER_PADS_PLATEDHOLES );

        galCanvas->ForceRefresh();
    }

    myframe->ReCreateHToolbar();

    myframe->GetCanvas()->Refresh();
}

void PCB_LAYER_WIDGET::OnLayerColorChange( int aLayer, COLOR4D aColor )
{
    // Avoid setting the alpha channel, when we are in legacy mode,
    // because in legacy mode the alpha channel is not used, but changing it
    // destroys the GAL color setup
    if( !myframe->IsGalCanvasActive() )
    {
        COLOR4D oldColor = myframe->Settings().Colors().GetLayerColor( aLayer );
        aColor.a = oldColor.a;
    }

    myframe->Settings().Colors().SetLayerColor( aLayer, aColor );

    if( myframe->IsGalCanvasActive() )
    {
        KIGFX::VIEW* view = myframe->GetGalCanvas()->GetView();
        view->GetPainter()->GetSettings()->ImportLegacyColors( &myframe->Settings().Colors() );
        view->UpdateLayerColor( aLayer );
        view->UpdateLayerColor( GetNetnameLayer( aLayer ) );
    }

    myframe->ReCreateHToolbar();

    myframe->GetCanvas()->Refresh();

    if( aLayer == LAYER_PCB_BACKGROUND )
        myframe->SetDrawBgColor( aColor );
}

bool InvokeDXFDialogModuleImport( PCB_BASE_FRAME* aCaller, MODULE* aModule )
{
    wxASSERT( aModule );

    DIALOG_DXF_IMPORT dlg( aCaller );
    bool success = ( dlg.ShowModal() == wxID_OK );

    if( success )
    {
        const std::list<BOARD_ITEM*>& list = dlg.GetImportedItems();
        KIGFX::VIEW* view = aCaller->GetGalCanvas()->GetView();

        aCaller->SaveCopyInUndoList( aModule, UR_MODEDIT );
        aCaller->OnModify();

        std::list<BOARD_ITEM*>::const_iterator it, itEnd;
        for( it = list.begin(), itEnd = list.end(); it != itEnd; ++it )
        {
            BOARD_ITEM* item = *it;
            BOARD_ITEM* converted = NULL;

            // Modules use different types for the same things,
            // so we need to convert imported items to appropriate classes.
            switch( item->Type() )
            {
            case PCB_LINE_T:
            {
                converted = new EDGE_MODULE( aModule );
                *static_cast<DRAWSEGMENT*>( converted ) = *static_cast<DRAWSEGMENT*>( item );
                aModule->Add( converted );
                static_cast<EDGE_MODULE*>( converted )->SetLocalCoord();
                delete item;
                break;
            }

            case PCB_TEXT_T:
            {
                converted = new TEXTE_MODULE( aModule );
                *static_cast<TEXTE_PCB*>( converted ) = *static_cast<TEXTE_PCB*>( item );
                aModule->Add( converted );
                static_cast<TEXTE_MODULE*>( converted )->SetLocalCoord();
                delete item;
                break;
            }

            default:
                wxLogDebug( wxT( "type %d currently not handled" ), item->Type() );
                break;
            }

            if( aCaller->IsGalCanvasActive() && converted )
                view->Add( converted );
        }
    }

    return success;
}

void EDA_DRAW_FRAME::UseGalCanvas( bool aEnable )
{
    KIGFX::VIEW* view = GetGalCanvas()->GetView();
    KIGFX::GAL* gal = GetGalCanvas()->GetGAL();

    double zoomFactor = gal->GetWorldScale() / gal->GetZoomFactor();

    // Display the same view after canvas switching
    if( aEnable )
    {
        BASE_SCREEN* screen = GetScreen();

        // Switch to GAL rendering
        if( !IsGalCanvasActive() )
        {
            // Set up viewport
            double zoom = 1.0 / ( zoomFactor * m_canvas->GetZoom() );
            view->SetScale( zoom );
            view->SetCenter( VECTOR2D( m_canvas->GetScreenCenterLogicalPosition() ) );
        }

        // Set up grid settings
        gal->SetGridVisibility( IsGridVisible() );
        gal->SetGridSize( VECTOR2D( screen->GetGridSize().x, screen->GetGridSize().y ) );
        gal->SetGridOrigin( VECTOR2D( GetGridOrigin() ) );
    }
    else
    {
        // Switch to standard rendering
        if( IsGalCanvasActive() )
        {
            // Change view settings only if GAL was active previously
            double zoom = 1.0 / ( zoomFactor * view->GetScale() );
            m_canvas->SetZoom( zoom );

            VECTOR2D center = view->GetCenter();
            RedrawScreen( wxPoint( center.x, center.y ), false );
        }
    }

    m_canvas->SetEvtHandlerEnabled( !aEnable );
    GetGalCanvas()->SetEvtHandlerEnabled( aEnable );

    // Switch panes
    m_auimgr.GetPane( wxT( "DrawFrame" ) ).Show( !aEnable );
    m_auimgr.GetPane( wxT( "DrawFrameGal" ) ).Show( aEnable );
    m_auimgr.Update();

    // Reset current tool on switch();
    SetToolID( ID_NO_TOOL_SELECTED, wxCURSOR_DEFAULT, wxEmptyString );

    m_galCanvasActive = aEnable;
}

void PCB_LAYER_WIDGET::OnLayerColorChange( int aLayer, EDA_COLOR_T aColor )
{
    myframe->GetBoard()->SetLayerColor( ToLAYER_ID( aLayer ), aColor );

    if( myframe->IsGalCanvasActive() )
    {
        KIGFX::VIEW* view = myframe->GetGalCanvas()->GetView();
        view->GetPainter()->GetSettings()->ImportLegacyColors( myframe->GetBoard()->GetColorsSettings() );
        view->UpdateLayerColor( aLayer );
    }

    myframe->GetCanvas()->Refresh();
}

void EDA_DRAW_FRAME::UseGalCanvas( bool aEnable )
{
    KIGFX::VIEW* view = GetGalCanvas()->GetView();
    KIGFX::GAL* gal = GetGalCanvas()->GetGAL();

    // Display the same view after canvas switching
    if( aEnable )
    {
        // Switch to GAL renderer from legacy
        if( !m_galCanvasActive )
        {
            // Set up viewport
            double zoomFactor = gal->GetWorldScale() / gal->GetZoomFactor();
            double zoom = 1.0 / ( zoomFactor * m_canvas->GetZoom() );
            view->SetScale( zoom );
            view->SetCenter( VECTOR2D( m_canvas->GetScreenCenterLogicalPosition() ) );
        }

        // Set up grid settings
        gal->SetGridVisibility( IsGridVisible() );
        gal->SetGridSize( VECTOR2D( GetScreen()->GetGridSize() ) );
        gal->SetGridOrigin( VECTOR2D( GetGridOrigin() ) );

        // Transfer EDA_DRAW_PANEL settings
        GetGalCanvas()->GetViewControls()->EnableCursorWarping( !m_canvas->GetEnableZoomNoCenter() );
        GetGalCanvas()->GetViewControls()->EnableMousewheelPan( m_canvas->GetEnableMousewheelPan() );
        GetGalCanvas()->GetViewControls()->EnableAutoPan( m_canvas->GetEnableAutoPan() );
    }
    else if( m_galCanvasActive )
    {
        // Switch to legacy renderer from GAL
        double zoomFactor = gal->GetWorldScale() / gal->GetZoomFactor();
        // TODO replace it with EDA_DRAW_PANEL_GAL::GetLegacyZoom
        m_canvas->SetZoom( 1.0 / ( zoomFactor * view->GetScale() ) );
        VECTOR2D center = view->GetCenter();
        AdjustScrollBars( wxPoint( center.x, center.y ) );
    }

    m_canvas->SetEvtHandlerEnabled( !aEnable );
    GetGalCanvas()->SetEvtHandlerEnabled( aEnable );

    // Switch panes
    m_auimgr.GetPane( wxT( "DrawFrame" ) ).Show( !aEnable );
    m_auimgr.GetPane( wxT( "DrawFrameGal" ) ).Show( aEnable );
    m_auimgr.Update();

    // Reset current tool on switch();
    SetNoToolSelected();

    m_galCanvasActive = aEnable;
}

int PCBNEW_CONTROL::ZoomInOutCenter( const TOOL_EVENT& aEvent )
{
    KIGFX::VIEW* view = getView();
    double zoomScale = 1.0;

    if( aEvent.IsAction( &COMMON_ACTIONS::zoomInCenter ) )
        zoomScale = 1.3;
    else if( aEvent.IsAction( &COMMON_ACTIONS::zoomOutCenter ) )
        zoomScale = 0.7;

    view->SetScale( view->GetScale() * zoomScale );

    return 0;
}

int PCBNEW_CONTROL::ZoomInOut( const TOOL_EVENT& aEvent )
{
    KIGFX::VIEW* view = m_frame->GetGalCanvas()->GetView();
    double zoomScale = 1.0;

    if( aEvent.IsAction( &COMMON_ACTIONS::zoomIn ) )
        zoomScale = 1.3;
    else if( aEvent.IsAction( &COMMON_ACTIONS::zoomOut ) )
        zoomScale = 0.7;

    view->SetScale( view->GetScale() * zoomScale, getViewControls()->GetCursorPosition() );

    return 0;
}