bool PCB_BASE_FRAME::InvokeDialogGrid()
{
wxPoint grid_origin = GetGridOrigin();
DIALOG_SET_GRID dlg( this, &m_UserGridUnit, g_UserUnit, &m_UserGridSize,
&grid_origin, &m_FastGrid1, &m_FastGrid2,
m_gridSelectBox->GetStrings() );
int ret = dlg.ShowModal();
if( ret == wxID_OK )
{
if( GetGridOrigin() != grid_origin && IsType( FRAME_PCB ) )
OnModify(); // because grid origin is saved in board, show as modified
SetGridOrigin( grid_origin );
GetScreen()->AddGrid( m_UserGridSize, m_UserGridUnit, ID_POPUP_GRID_USER );
// If the user grid is the current option, recall SetGrid()
// to force new values put in list as current grid value
if( GetScreen()->GetGridId() == ID_POPUP_GRID_USER )
GetScreen()->SetGrid( ID_POPUP_GRID_USER );
m_canvas->Refresh();
return true;
}
return false;
}
void EDA_DRAW_FRAME::UseGalCanvas()
{
KIGFX::GAL* gal = GetGalCanvas()->GetGAL();
// Set up grid settings
gal->SetGridVisibility( IsGridVisible() );
gal->SetGridSize( VECTOR2D( GetScreen()->GetGridSize() ) );
gal->SetGridOrigin( VECTOR2D( GetGridOrigin() ) );
// Transfer EDA_DRAW_PANEL settings
KIGFX::VIEW_CONTROLS* viewControls = GetGalCanvas()->GetViewControls();
viewControls->EnableCursorWarping( !m_canvas->GetEnableZoomNoCenter() );
viewControls->EnableMousewheelPan( m_canvas->GetEnableMousewheelPan() );
viewControls->EnableAutoPan( m_canvas->GetEnableAutoPan() );
m_canvas->SetEvtHandlerEnabled( false );
GetGalCanvas()->SetEvtHandlerEnabled( true );
GetGalCanvas()->StartDrawing();
// Switch panes
// JEY TODO: drop down to a single pane....
m_auimgr.GetPane( "DrawFrame" ).Show( false );
m_auimgr.GetPane( "DrawFrameGal" ).Show( true );
m_auimgr.Update();
// Reset current tool on switch();
SetNoToolSelected();
}
bool PCB_BASE_FRAME::InvokeDialogGrid()
{
wxPoint grid_origin = GetGridOrigin();
DIALOG_SET_GRID dlg( this, &m_UserGridUnit, g_UserUnit, &m_UserGridSize,
&grid_origin, &m_FastGrid1, &m_FastGrid2,
m_gridSelectBox->GetStrings() );
int ret = dlg.ShowModal();
if( ret == wxID_OK )
{
if( GetGridOrigin() != grid_origin && IsType( FRAME_PCB ) )
OnModify(); // because grid origin is saved in board, show as modified
SetGridOrigin( grid_origin );
BASE_SCREEN* screen = GetScreen();
screen->AddGrid( m_UserGridSize, m_UserGridUnit, ID_POPUP_GRID_USER );
// If the user grid is the current option, recall SetGrid()
// to force new values put in list as current grid value
if( screen->GetGridCmdId() == ID_POPUP_GRID_USER )
screen->SetGrid( ID_POPUP_GRID_USER );
// Notify GAL
TOOL_MANAGER* mgr = GetToolManager();
if( mgr && IsGalCanvasActive() )
{
mgr->RunAction( "common.Control.gridPreset", true,
screen->GetGridCmdId() - ID_POPUP_GRID_LEVEL_1000 );
TOOL_EVENT gridOriginUpdate = COMMON_ACTIONS::gridSetOrigin.MakeEvent();
gridOriginUpdate.SetParameter( new VECTOR2D( grid_origin ) );
mgr->ProcessEvent( gridOriginUpdate );
}
m_canvas->Refresh();
return true;
}
return false;
}
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;
}
bool PCB_BASE_FRAME::InvokeDialogGrid()
{
wxPoint grid_origin = GetGridOrigin();
DIALOG_SET_GRID dlg( this, &m_UserGridUnit, g_UserUnit, &m_UserGridSize,
&grid_origin, &m_FastGrid1, &m_FastGrid2,
m_gridSelectBox->GetStrings() );
int ret = dlg.ShowModal();
if( ret == wxID_OK )
{
if( GetGridOrigin() != grid_origin && IsType( FRAME_PCB ) )
OnModify(); // because grid origin is saved in board, show as modified
SetGridOrigin( grid_origin );
BASE_SCREEN* screen = GetScreen();
screen->AddGrid( m_UserGridSize, m_UserGridUnit, ID_POPUP_GRID_USER );
// If the user grid is the current option, recall SetGrid()
// to force new values put in list as current grid value
if( screen->GetGridId() == ID_POPUP_GRID_USER )
screen->SetGrid( ID_POPUP_GRID_USER );
if( IsGalCanvasActive() )
{
GetGalCanvas()->GetGAL()->SetGridSize( VECTOR2D( screen->GetGrid().m_Size.x,
screen->GetGrid().m_Size.y ) );
GetGalCanvas()->GetView()->MarkTargetDirty( KIGFX::TARGET_NONCACHED );
}
m_canvas->Refresh();
return true;
}
return false;
}
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;
}
bool PCB_EDIT_FRAME::OnHotKey( wxDC* aDC, int aHotkeyCode, const wxPoint& aPosition,
EDA_ITEM* aItem )
{
if( aHotkeyCode == 0 )
return false;
bool itemCurrentlyEdited = GetCurItem() && GetCurItem()->GetFlags();
MODULE* module = NULL;
int evt_type = 0; //Used to post a wxCommandEvent on demand
PCB_SCREEN* screen = GetScreen();
auto displ_opts = (PCB_DISPLAY_OPTIONS*)GetDisplayOptions();
/* Convert lower to upper case
* (the usual toupper function has problem with non ascii codes like function keys
*/
if( (aHotkeyCode >= 'a') && (aHotkeyCode <= 'z') )
aHotkeyCode += 'A' - 'a';
EDA_HOTKEY* HK_Descr = GetDescriptorFromHotkey( aHotkeyCode, common_Hotkey_List );
if( HK_Descr == NULL )
HK_Descr = GetDescriptorFromHotkey( aHotkeyCode, board_edit_Hotkey_List );
if( HK_Descr == NULL )
return false;
int hk_id = HK_Descr->m_Idcommand;
// Create a wxCommandEvent that will be posted in some hot keys functions
wxCommandEvent cmd( wxEVT_COMMAND_MENU_SELECTED );
cmd.SetEventObject( this );
LAYER_NUM ll;
switch( hk_id )
{
default:
case HK_NOT_FOUND:
return false;
case HK_LEFT_CLICK:
OnLeftClick( aDC, aPosition );
break;
case HK_LEFT_DCLICK: // Simulate a double left click: generate 2 events
OnLeftClick( aDC, aPosition );
OnLeftDClick( aDC, aPosition );
break;
case HK_SWITCH_TRACK_WIDTH_TO_NEXT:
if( GetCanvas()->IsMouseCaptured() )
GetCanvas()->CallMouseCapture( aDC, wxDefaultPosition, false );
if( GetDesignSettings().GetTrackWidthIndex() < GetDesignSettings().m_TrackWidthList.size() - 1 )
GetDesignSettings().SetTrackWidthIndex( GetDesignSettings().GetTrackWidthIndex() + 1 );
else
GetDesignSettings().SetTrackWidthIndex( 0 );
if( GetCanvas()->IsMouseCaptured() )
GetCanvas()->CallMouseCapture( aDC, wxDefaultPosition, false );
break;
case HK_SWITCH_TRACK_WIDTH_TO_PREVIOUS:
if( GetCanvas()->IsMouseCaptured() )
GetCanvas()->CallMouseCapture( aDC, wxDefaultPosition, false );
if( GetDesignSettings().GetTrackWidthIndex() <= 0 )
GetDesignSettings().SetTrackWidthIndex( GetDesignSettings().m_TrackWidthList.size() -1 );
else
GetDesignSettings().SetTrackWidthIndex( GetDesignSettings().GetTrackWidthIndex() - 1 );
if( GetCanvas()->IsMouseCaptured() )
GetCanvas()->CallMouseCapture( aDC, wxDefaultPosition, false );
break;
case HK_SWITCH_GRID_TO_FASTGRID1:
SetFastGrid1();
break;
case HK_SWITCH_GRID_TO_FASTGRID2:
SetFastGrid2();
break;
case HK_SWITCH_GRID_TO_NEXT:
evt_type = ID_POPUP_GRID_NEXT;
break;
case HK_SWITCH_GRID_TO_PREVIOUS:
evt_type = ID_POPUP_GRID_PREV;
break;
case HK_SWITCH_LAYER_TO_PREVIOUS:
ll = GetActiveLayer();
if( !IsCopperLayer( ll ) )
break;
if( ll == F_Cu )
ll = B_Cu;
else if( ll == B_Cu )
ll = ToLAYER_ID( GetBoard()->GetCopperLayerCount() - 2 );
else
ll = ll - 1;
SwitchLayer( aDC, ToLAYER_ID( ll ) );
break;
case HK_SWITCH_LAYER_TO_NEXT:
ll = GetActiveLayer();
if( !IsCopperLayer( ll ) )
break;
if( ll == B_Cu )
ll = F_Cu;
else if( ++ll >= GetBoard()->GetCopperLayerCount() - 1 )
ll = B_Cu;
SwitchLayer( aDC, ToLAYER_ID( ll ) );
break;
case HK_SWITCH_LAYER_TO_COMPONENT:
SwitchLayer( aDC, F_Cu );
break;
case HK_SWITCH_LAYER_TO_COPPER:
SwitchLayer( aDC, B_Cu );
break;
case HK_SWITCH_LAYER_TO_INNER1:
SwitchLayer( aDC, In1_Cu );
break;
case HK_SWITCH_LAYER_TO_INNER2:
SwitchLayer( aDC, In2_Cu );
break;
case HK_SWITCH_LAYER_TO_INNER3:
SwitchLayer( aDC, In3_Cu );
break;
case HK_SWITCH_LAYER_TO_INNER4:
SwitchLayer( aDC, In4_Cu );
break;
case HK_SWITCH_LAYER_TO_INNER5:
SwitchLayer( aDC, In5_Cu );
break;
case HK_SWITCH_LAYER_TO_INNER6:
SwitchLayer( aDC, In6_Cu );
break;
case HK_HELP: // Display Current hotkey list
DisplayHotkeyList( this, g_Board_Editor_Hotkeys_Descr );
break;
case HK_PREFERENCES:
evt_type = wxID_PREFERENCES;
break;
case HK_ZOOM_IN:
evt_type = ID_KEY_ZOOM_IN;
break;
case HK_ZOOM_OUT:
evt_type = ID_KEY_ZOOM_OUT;
break;
case HK_ZOOM_REDRAW:
evt_type = ID_ZOOM_REDRAW;
break;
case HK_ZOOM_AUTO:
evt_type = ID_ZOOM_PAGE;
break;
case HK_ZOOM_CENTER:
evt_type = ID_POPUP_ZOOM_CENTER;
break;
case HK_ZOOM_SELECTION:
evt_type = ID_ZOOM_SELECTION;
break;
case HK_ADD_MODULE:
evt_type = ID_PCB_MODULE_BUTT;
break;
case HK_UNDO:
case HK_REDO:
if( !itemCurrentlyEdited )
{
wxCommandEvent event( wxEVT_COMMAND_TOOL_CLICKED, HK_Descr->m_IdMenuEvent );
wxPostEvent( this, event );
}
break;
case HK_RESET_LOCAL_COORD: // Set the relative coord
GetScreen()->m_O_Curseur = GetCrossHairPosition();
break;
case HK_SET_GRID_ORIGIN:
PCBNEW_CONTROL::SetGridOrigin( GetGalCanvas()->GetView(), this,
new KIGFX::ORIGIN_VIEWITEM( GetGridOrigin(), UR_TRANSIENT ),
GetCrossHairPosition() );
m_canvas->Refresh();
break;
case HK_RESET_GRID_ORIGIN:
PCBNEW_CONTROL::SetGridOrigin( GetGalCanvas()->GetView(), this,
new KIGFX::ORIGIN_VIEWITEM( GetGridOrigin(), UR_TRANSIENT ),
wxPoint( 0, 0 ) );
m_canvas->Refresh();
break;
case HK_SWITCH_UNITS:
evt_type = (GetUserUnits() == INCHES) ?
ID_TB_OPTIONS_SELECT_UNIT_MM : ID_TB_OPTIONS_SELECT_UNIT_INCH;
break;
case HK_SWITCH_TRACK_DISPLAY_MODE:
displ_opts->m_DisplayPcbTrackFill = !displ_opts->m_DisplayPcbTrackFill;
m_canvas->Refresh();
break;
case HK_DELETE:
OnHotkeyDeleteItem( aDC );
break;
case HK_BACK_SPACE:
if( IsCopperLayer( GetActiveLayer() ) )
{
if( !itemCurrentlyEdited )
{
// no track is currently being edited - select a segment and remove it.
// @todo: possibly? pass the HK command code to PcbGeneralLocateAndDisplay()
// so it can restrict its search to specific item types.
BOARD_ITEM * item = PcbGeneralLocateAndDisplay();
// don't let backspace delete modules!!
if( item && item->IsTrack() )
{
Delete_Segment( aDC, (TRACK*) item );
SetCurItem( NULL );
}
OnModify();
}
else if( GetCurItem()->IsTrack() )
{
// then an element is being edited - remove the last segment.
// simple lines for debugger:
TRACK* track = (TRACK*) GetCurItem();
track = Delete_Segment( aDC, track );
SetCurItem( track );
OnModify();
}
}
break;
case HK_GET_AND_MOVE_FOOTPRINT:
if( !itemCurrentlyEdited )
evt_type = ID_POPUP_PCB_GET_AND_MOVE_MODULE_REQUEST;
break;
case HK_FIND_ITEM:
if( !itemCurrentlyEdited )
evt_type = ID_FIND_ITEMS;
break;
case HK_OPEN:
if( !itemCurrentlyEdited )
evt_type = ID_LOAD_FILE ;
break;
case HK_SAVE:
if( !itemCurrentlyEdited )
evt_type = ID_SAVE_BOARD;
break;
case HK_ADD_MICROVIA: // Place a micro via if a track is in progress
if( GetToolId() != ID_TRACK_BUTT )
return true;
if( !itemCurrentlyEdited ) // no track in progress: nothing to do
break;
if( GetCurItem()->Type() != PCB_TRACE_T ) // Should not occur
return true;
if( !GetCurItem()->IsNew() )
return true;
// place micro via and switch layer
if( IsMicroViaAcceptable() )
evt_type = ID_POPUP_PCB_PLACE_MICROVIA;
break;
case HK_ADD_BLIND_BURIED_VIA:
case HK_ADD_THROUGH_VIA: // Switch to alternate layer and Place a via if a track is in progress
if( GetBoard()->GetDesignSettings().m_BlindBuriedViaAllowed &&
hk_id == HK_ADD_BLIND_BURIED_VIA )
GetBoard()->GetDesignSettings().m_CurrentViaType = VIA_BLIND_BURIED;
else
GetBoard()->GetDesignSettings().m_CurrentViaType = VIA_THROUGH;
if( !itemCurrentlyEdited ) // no track in progress: switch layer only
{
Other_Layer_Route( NULL, aDC );
if( displ_opts->m_ContrastModeDisplay )
m_canvas->Refresh();
break;
}
if( GetToolId() != ID_TRACK_BUTT )
return true;
if( GetCurItem()->Type() != PCB_TRACE_T )
return true;
if( !GetCurItem()->IsNew() )
return true;
evt_type = hk_id == HK_ADD_BLIND_BURIED_VIA ?
ID_POPUP_PCB_PLACE_BLIND_BURIED_VIA : ID_POPUP_PCB_PLACE_THROUGH_VIA;
break;
case HK_SEL_LAYER_AND_ADD_THROUGH_VIA:
case HK_SEL_LAYER_AND_ADD_BLIND_BURIED_VIA:
if( GetCurItem() == NULL || !GetCurItem()->IsNew() ||
GetCurItem()->Type() != PCB_TRACE_T )
break;
evt_type = hk_id == HK_SEL_LAYER_AND_ADD_BLIND_BURIED_VIA ?
ID_POPUP_PCB_SELECT_CU_LAYER_AND_PLACE_BLIND_BURIED_VIA :
ID_POPUP_PCB_SELECT_CU_LAYER_AND_PLACE_THROUGH_VIA;
break;
case HK_SWITCH_TRACK_POSTURE:
/* change the position of initial segment when creating new tracks
* switch from _/ to -\ .
*/
evt_type = ID_POPUP_PCB_SWITCH_TRACK_POSTURE ;
break;
case HK_DRAG_TRACK_KEEP_SLOPE:
OnHotkeyMoveItem( HK_DRAG_TRACK_KEEP_SLOPE );
break;
case HK_PLACE_ITEM:
OnHotkeyPlaceItem( aDC );
break;
case HK_ADD_NEW_TRACK: // Start new track, if possible
OnHotkeyBeginRoute( aDC );
break;
case HK_EDIT_ITEM: // Edit board item
OnHotkeyEditItem( HK_EDIT_ITEM );
break;
case HK_EDIT_MODULE_WITH_MODEDIT: // Edit module with module editor
OnHotkeyEditItem( HK_EDIT_MODULE_WITH_MODEDIT );
break;
case HK_LOCK_UNLOCK_FOOTPRINT: // toggle module "MODULE_is_LOCKED" status:
// get any module, locked or not locked and toggle its locked status
if( !itemCurrentlyEdited )
{
wxPoint pos = RefPos( true );
module = GetBoard()->GetFootprint( pos, screen->m_Active_Layer, true );
}
else if( GetCurItem()->Type() == PCB_MODULE_T )
{
module = (MODULE*) GetCurItem();
}
if( module )
{
SetCurItem( module );
module->SetLocked( !module->IsLocked() );
OnModify();
SetMsgPanel( module );
}
break;
case HK_DRAG_ITEM: // Start drag module or track segment
OnHotkeyMoveItem( HK_DRAG_ITEM );
break;
case HK_MOVE_ITEM: // Start move item
OnHotkeyMoveItem( HK_MOVE_ITEM );
break;
case HK_COPY_ITEM:
evt_type = OnHotkeyCopyItem();
break;
case HK_ROTATE_ITEM: // Rotation
OnHotkeyRotateItem( HK_ROTATE_ITEM );
break;
case HK_FLIP_ITEM:
OnHotkeyFlipItem( HK_FLIP_ITEM );
break;
case HK_MOVE_ITEM_EXACT:
case HK_DUPLICATE_ITEM:
case HK_DUPLICATE_ITEM_AND_INCREMENT:
case HK_CREATE_ARRAY:
OnHotkeyDuplicateOrArrayItem( HK_Descr->m_Idcommand );
break;
case HK_SWITCH_HIGHCONTRAST_MODE: // switch to high contrast mode and refresh the canvas
displ_opts->m_ContrastModeDisplay = !displ_opts->m_ContrastModeDisplay;
m_canvas->Refresh();
break;
case HK_CANVAS_CAIRO:
evt_type = ID_MENU_CANVAS_CAIRO;
break;
case HK_CANVAS_OPENGL:
evt_type = ID_MENU_CANVAS_OPENGL;
break;
case HK_CANVAS_LEGACY:
evt_type = ID_MENU_CANVAS_LEGACY;
break;
case HK_ZONE_FILL_OR_REFILL:
evt_type = ID_POPUP_PCB_FILL_ALL_ZONES;
break;
case HK_ZONE_REMOVE_FILLED:
evt_type = ID_POPUP_PCB_REMOVE_FILLED_AREAS_IN_ALL_ZONES;
break;
}
if( evt_type != 0 )
{
wxCommandEvent evt( wxEVT_COMMAND_MENU_SELECTED );
evt.SetEventObject( this );
evt.SetId( evt_type );
GetEventHandler()->ProcessEvent( evt );
}
return true;
}
wxPoint EDA_DRAW_FRAME::GetNearestGridPosition( const wxPoint& aPosition, wxRealPoint* aGridSize ) const
{
BASE_SCREEN* screen = GetScreen(); // virtual call
return screen->getNearestGridPosition( aPosition, GetGridOrigin(), aGridSize );
}
wxPoint EDA_DRAW_FRAME::GetCursorPosition( bool aOnGrid, wxRealPoint* aGridSize ) const
{
BASE_SCREEN* screen = GetScreen(); // virtual call
return screen->getCursorPosition( aOnGrid, GetGridOrigin(), aGridSize );
}
void EDA_DRAW_FRAME::SetCrossHairPosition( const wxPoint& aPosition, bool aSnapToGrid )
{
BASE_SCREEN* screen = GetScreen(); // virtual call
screen->setCrossHairPosition( aPosition, GetGridOrigin(), aSnapToGrid );
}
