C++ VIEW::SetCenter方法代码示例

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::ZoomFitScreen( const TOOL_EVENT& aEvent )
{
    KIGFX::VIEW* view = m_frame->GetGalCanvas()->GetView();
    KIGFX::GAL* gal = m_frame->GetGalCanvas()->GetGAL();
    BOARD* board = getModel<BOARD>();
    board->ComputeBoundingBox();
    BOX2I boardBBox = board->ViewBBox();
    VECTOR2I screenSize = gal->GetScreenPixelSize();

    if( boardBBox.GetSize().x == 0 || boardBBox.GetSize().y == 0 )
    {
        // Empty view
        view->SetCenter( view->ToWorld( VECTOR2D( screenSize.x / 2, screenSize.y / 2 ) ) );
        view->SetScale( 17.0 );
    }
    else
    {
        // Autozoom to board
        double iuPerX = screenSize.x ? boardBBox.GetWidth() / screenSize.x : 1.0;
        double iuPerY = screenSize.y ? boardBBox.GetHeight() / screenSize.y : 1.0;

        double bestZoom = std::max( iuPerX, iuPerY );
        double zoomFactor = gal->GetWorldScale() / gal->GetZoomFactor();
        double zoom = 1.0 / ( zoomFactor * bestZoom );

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

    return 0;
}

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

    return 0;
}

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 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;
}

// Cursor control
int PCBNEW_CONTROL::CursorControl( const TOOL_EVENT& aEvent )
{
    long type = aEvent.Parameter<long>();
    bool fastMove = type & COMMON_ACTIONS::CURSOR_FAST_MOVE;
    type &= ~COMMON_ACTIONS::CURSOR_FAST_MOVE;

    GRID_HELPER gridHelper( m_frame );
    VECTOR2D cursor = getViewControls()->GetCursorPosition();
    VECTOR2I gridSize = gridHelper.GetGrid();
    VECTOR2D newCursor = gridHelper.Align( cursor );

    if( fastMove )
        gridSize = gridSize * 10;

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

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

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

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

        case COMMON_ACTIONS::CURSOR_CLICK:              // fall through
        case COMMON_ACTIONS::CURSOR_DBL_CLICK:
        {
            TOOL_ACTIONS action = TA_NONE;
            int modifiers = 0;

            modifiers |= wxGetKeyState( WXK_SHIFT ) ? MD_SHIFT : 0;
            modifiers |= wxGetKeyState( WXK_CONTROL ) ? MD_CTRL : 0;
            modifiers |= wxGetKeyState( WXK_ALT ) ? MD_ALT : 0;

            if( type == COMMON_ACTIONS::CURSOR_CLICK )
                action = TA_MOUSE_CLICK;
            else if( type == COMMON_ACTIONS::CURSOR_DBL_CLICK )
                action = TA_MOUSE_DBLCLICK;
            else
                assert( false );

            TOOL_EVENT evt( TC_MOUSE, action, BUT_LEFT | modifiers );
            evt.SetMousePosition( getViewControls()->GetCursorPosition() );
            m_toolMgr->ProcessEvent( evt );

            return 0;
        }
        break;
    }

    // Handler cursor movement
    KIGFX::VIEW* view = getView();
    newCursor = view->ToScreen( newCursor );
    newCursor.x = KiROUND( newCursor.x );
    newCursor.y = KiROUND( newCursor.y );

    // Pan the screen if required
    const VECTOR2I& screenSize = view->GetGAL()->GetScreenPixelSize();
    BOX2I screenBox( VECTOR2I( 0, 0 ), screenSize );

    if( !screenBox.Contains( newCursor ) )
    {
        VECTOR2D delta( 0, 0 );

        if( newCursor.x < screenBox.GetLeft() )
        {
            delta.x = newCursor.x - screenBox.GetLeft();
            newCursor.x = screenBox.GetLeft();
        }
        else if( newCursor.x > screenBox.GetRight() )
        {
            delta.x = newCursor.x - screenBox.GetRight();
            // -1 is to keep the cursor within the drawing area,
            // so the cursor coordinates are still updated
            newCursor.x = screenBox.GetRight() - 1;
        }

        if( newCursor.y < screenBox.GetTop() )
        {
            delta.y = newCursor.y - screenBox.GetTop();
            newCursor.y = screenBox.GetTop();
        }
        else if( newCursor.y > screenBox.GetBottom() )
        {
            delta.y = newCursor.y - screenBox.GetBottom();
            // -1 is to keep the cursor within the drawing area,
            // so the cursor coordinates are still updated
            newCursor.y = screenBox.GetBottom() - 1;
        }

        view->SetCenter( view->GetCenter() + view->ToWorld( delta, false ) );
//.........这里部分代码省略.........

//.........这里部分代码省略.........

    SetBoard( new BOARD() );
    // In modedit, the default net clearance is not known.
    // (it depends on the actual board)
    // So we do not show the default clearance, by setting it to 0
    // The footprint or pad specific clearance will be shown
    GetBoard()->GetDesignSettings().GetDefault()->SetClearance( 0 );

    // Don't show the default board solder mask clearance in the footprint editor.  Only the
    // footprint or pad clearance setting should be shown if it is not 0.
    GetBoard()->GetDesignSettings().m_SolderMaskMargin = 0;

    // restore the last footprint from the project, if any
    restoreLastFootprint();

    // Ensure all layers and items are visible:
    // In footprint editor, some layers have no meaning or
    // cannot be used, but we show all of them, at least to be able
    // to edit a bad layer
    GetBoard()->SetVisibleAlls();

    // However the "no net" mark on pads is useless, because there is
    // no net in footprint editor: make it non visible
    GetBoard()->SetElementVisibility( LAYER_NO_CONNECTS, false );

    m_Layers = new PCB_LAYER_WIDGET( this, GetCanvas(), true );

    // LoadSettings() *after* creating m_LayersManager, because LoadSettings()
    // initialize parameters in m_LayersManager
    LoadSettings( config() );
    GetGalDisplayOptions().m_axesEnabled = true;

    SetScreen( new PCB_SCREEN( GetPageSettings().GetSizeIU() ) );
    GetScreen()->SetMaxUndoItems( m_UndoRedoCountMax );

    GetScreen()->AddGrid( m_UserGridSize, EDA_UNITS_T::UNSCALED_UNITS, ID_POPUP_GRID_USER );
    GetScreen()->SetGrid( ID_POPUP_GRID_LEVEL_1000 + m_LastGridSizeId );

    // In modedit, set the default paper size to A4:
    // this should be OK for all footprint to plot/print
    SetPageSettings( PAGE_INFO( PAGE_INFO::A4 ) );

    SetSize( m_FramePos.x, m_FramePos.y, m_FrameSize.x, m_FrameSize.y );

    initLibraryTree();
    m_treePane = new FOOTPRINT_TREE_PANE( this );

    // Create the manager and dispatcher & route draw panel events to the dispatcher
    setupTools();

    // ReCreateMenuBar();       // UseGalCanvas() will do this for us.
    ReCreateHToolbar();
    ReCreateVToolbar();
    ReCreateOptToolbar();

    m_Layers->ReFill();
    m_Layers->ReFillRender();

    GetScreen()->m_Active_Layer = F_SilkS;
    m_Layers->SelectLayer( F_SilkS );
    m_Layers->OnLayerSelected();

    m_auimgr.SetManagedWindow( this );
    m_auimgr.SetArtProvider( new EDA_DOCKART( this ) );

    // Horizontal items; layers 4 - 6
    m_auimgr.AddPane( m_mainToolBar, EDA_PANE().HToolbar().Name( "MainToolbar" ).Top().Layer(6) );
    m_auimgr.AddPane( m_messagePanel, EDA_PANE().Messages().Name( "MsgPanel" ).Bottom().Layer(6) );

    // Vertical items; layers 1 - 3
    m_auimgr.AddPane( m_optionsToolBar, EDA_PANE().VToolbar().Name( "OptToolbar" ).Left().Layer(3) );
    m_auimgr.AddPane( m_treePane, EDA_PANE().Palette().Name( "Footprints" ).Left().Layer(1)
                      .Caption( _( "Libraries" ) ).MinSize( 250, 400 )
                      .BestSize( m_defaultLibWidth, -1 ) );

    m_auimgr.AddPane( m_drawToolBar, EDA_PANE().VToolbar().Name( "ToolsToolbar" ).Right().Layer(1) );
    m_auimgr.AddPane( m_Layers, EDA_PANE().Palette().Name( "LayersManager" ).Right().Layer(3)
                      .Caption( _( "Layers Manager" ) ).PaneBorder( false )
                      .MinSize( 80, -1 ).BestSize( m_Layers->GetBestSize() ) );

    m_auimgr.AddPane( m_canvas, EDA_PANE().Canvas().Name( "DrawFrame" ).Center() );
    m_auimgr.AddPane( GetGalCanvas(), EDA_PANE().Canvas().Name( "DrawFrameGal" ).Center().Hide() );

    GetGalCanvas()->GetGAL()->SetAxesEnabled( true );

    // Set up viewport
    KIGFX::VIEW* view = GetGalCanvas()->GetView();
    view->SetScale( GetZoomLevelCoeff() / m_canvas->GetZoom() );
    view->SetCenter( VECTOR2D( m_canvas->GetScreenCenterLogicalPosition() ) );

    UseGalCanvas();

    m_auimgr.Update();
    updateTitle();

    Raise();            // On some window managers, this is needed
    Show( true );

    Zoom_Automatique( false );
}

//.........这里部分代码省略.........
    m_propertiesFrameWidth = 200;

    // Give an icon
    wxIcon icon;
    icon.CopyFromBitmap( KiBitmap( icon_pagelayout_editor_xpm ) );
    SetIcon( icon );

    // Create GAL canvas
#ifdef __WXMAC__
    // Cairo renderer doesn't handle Retina displays
    m_canvasType = EDA_DRAW_PANEL_GAL::GAL_TYPE_OPENGL;
#else
    m_canvasType = EDA_DRAW_PANEL_GAL::GAL_TYPE_CAIRO;
#endif

    auto* drawPanel = new PL_DRAW_PANEL_GAL( this, -1, wxPoint( 0, 0 ), m_FrameSize,
                                             GetGalDisplayOptions(), m_canvasType );
    SetGalCanvas( drawPanel );

    LoadSettings( config() );
    SetSize( m_FramePos.x, m_FramePos.y, m_FrameSize.x, m_FrameSize.y );

    wxSize pageSizeIU = GetPageLayout().GetPageSettings().GetSizeIU();
    SetScreen( new PL_EDITOR_SCREEN( pageSizeIU ) );

    if( !GetScreen()->GridExists( m_LastGridSizeId + ID_POPUP_GRID_LEVEL_1000 ) )
        m_LastGridSizeId = ID_POPUP_GRID_LEVEL_1MM - ID_POPUP_GRID_LEVEL_1000;

    GetScreen()->SetGrid( m_LastGridSizeId + ID_POPUP_GRID_LEVEL_1000 );

    setupTools();
    ReCreateMenuBar();
    ReCreateHToolbar();
    ReCreateVToolbar();

    wxWindow* stsbar = GetStatusBar();
    int dims[] = {

        // balance of status bar on far left is set to a default or whatever is left over.
        -1,

        // When using GetTextSize() remember the width of '1' is not the same
        // as the width of '0' unless the font is fixed width, and it usually won't be.

        // zoom:
        GetTextSize( wxT( "Z 762000" ), stsbar ).x + 10,

        // cursor coords
        GetTextSize( wxT( "X 0234.567  Y 0234.567" ), stsbar ).x + 10,

        // delta distances
        GetTextSize( wxT( "dx 0234.567  dx 0234.567" ), stsbar ).x + 10,

        // Coord origin (use the bigger message)
        GetTextSize( _( "coord origin: Right Bottom page corner" ), stsbar ).x + 10,

        // units display, Inches is bigger than mm
        GetTextSize( _( "Inches" ), stsbar ).x + 10
    };

    SetStatusWidths( arrayDim( dims ), dims );

    m_auimgr.SetManagedWindow( this );
    m_auimgr.SetArtProvider( new EDA_DOCKART( this ) );

    m_propertiesPagelayout = new PROPERTIES_FRAME( this );

    // Horizontal items; layers 4 - 6
    m_auimgr.AddPane( m_mainToolBar, EDA_PANE().HToolbar().Name( "MainToolbar" ).Top().Layer(6) );
    m_auimgr.AddPane( m_messagePanel, EDA_PANE().Messages().Name( "MsgPanel" ).Bottom().Layer(6) );

    // Vertical items; layers 1 - 3
    m_auimgr.AddPane( m_drawToolBar, EDA_PANE().VToolbar().Name( "ToolsToolbar" ).Right().Layer(1) );

    m_auimgr.AddPane( m_propertiesPagelayout, EDA_PANE().Palette().Name( "Props" ).Right().Layer(2)
                      .Caption( _( "Properties" ) ).MinSize( m_propertiesPagelayout->GetMinSize() )
                      .BestSize( m_propertiesFrameWidth, -1 ) );

    m_auimgr.AddPane( m_canvas, EDA_PANE().Canvas().Name( "DrawFrame" ).Center() );
    m_auimgr.AddPane( GetGalCanvas(), EDA_PANE().Canvas().Name( "DrawFrameGal" ).Center().Hide() );

    // Set up viewport
    KIGFX::VIEW* view = GetGalCanvas()->GetView();
    view->SetScale( GetZoomLevelCoeff() / m_canvas->GetZoom() );
    view->SetCenter( VECTOR2D( m_canvas->GetScreenCenterLogicalPosition() ) );

    UseGalCanvas();

    m_auimgr.Update();

    // Initialize the current page layout
    WS_DATA_MODEL& pglayout = WS_DATA_MODEL::GetTheInstance();
#if 0       //start with empty layout
    pglayout.AllowVoidList( true );
    pglayout.ClearList();
#else       // start with the default Kicad layout
    pglayout.SetPageLayout();
#endif
    OnNewPageLayout();
}