symbol_editor_drawing_tools.cpp

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/*
 * This program source code file is part of KiCad, a free EDA CAD application.
 *
 * Copyright (C) 2019 CERN
 * Copyright (C) 2019-2024 KiCad Developers, see AUTHORS.txt for contributors.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, you may find one here:
 * http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
 * or you may search the http://www.gnu.org website for the version 2 license,
 * or you may write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
 */
 
#include <ee_actions.h>
#include <optional>
#include <symbol_edit_frame.h>
#include <sch_commit.h>
#include <gal/graphics_abstraction_layer.h>
#include <tools/symbol_editor_drawing_tools.h>
#include <tools/symbol_editor_pin_tool.h>
#include <tools/ee_grid_helper.h>
#include <dialogs/dialog_text_properties.h>
#include <sch_shape.h>
#include <sch_textbox.h>
#include <pgm_base.h>
#include <view/view_controls.h>
#include <symbol_editor/symbol_editor_settings.h>
#include <settings/settings_manager.h>
#include <string_utils.h>
#include <wx/msgdlg.h>
#include <import_gfx/dialog_import_gfx_sch.h>
 
 
KIID SYMBOL_EDITOR_DRAWING_TOOLS::g_lastPin;
 
 
SYMBOL_EDITOR_DRAWING_TOOLS::SYMBOL_EDITOR_DRAWING_TOOLS() :
 EE_TOOL_BASE<SYMBOL_EDIT_FRAME>( "eeschema.SymbolDrawing" ),
 m_lastTextBold( false ),
 m_lastTextItalic( false ),
 m_lastTextAngle( ANGLE_HORIZONTAL ),
 m_lastTextJust( GR_TEXT_H_ALIGN_LEFT ),
 m_lastFillStyle( FILL_T::NO_FILL ),
 m_lastFillColor( COLOR4D::UNSPECIFIED ),
 m_lastStroke( 0, LINE_STYLE::DEFAULT, COLOR4D::UNSPECIFIED ),
 m_drawSpecificBodyStyle( true ),
 m_drawSpecificUnit( false ),
 m_inDrawShape( false ),
 m_inTwoClickPlace( false )
{
}
 
 
bool SYMBOL_EDITOR_DRAWING_TOOLS::Init()
{
 EE_TOOL_BASE::Init();
 
 auto isDrawingCondition =
 [] ( const SELECTION& aSel )
 {
 SCH_ITEM* item = dynamic_cast<SCH_ITEM*>( aSel.Front() );
 return item && item->IsNew();
 };
 
 m_menu.GetMenu().AddItem( ACTIONS::finishInteractive, isDrawingCondition, 2 );
 
 return true;
}
 
 
int SYMBOL_EDITOR_DRAWING_TOOLS::TwoClickPlace( const TOOL_EVENT& aEvent )
{
 KICAD_T type = aEvent.Parameter<KICAD_T>();
 auto* settings = Pgm().GetSettingsManager().GetAppSettings<SYMBOL_EDITOR_SETTINGS>();
 auto* pinTool = type == SCH_PIN_T ? m_toolMgr->GetTool<SYMBOL_EDITOR_PIN_TOOL>() : nullptr;
 
 if( m_inTwoClickPlace )
 return 0;
 
 REENTRANCY_GUARD guard( &m_inTwoClickPlace );
 
 KIGFX::VIEW_CONTROLS* controls = getViewControls();
 EE_GRID_HELPER grid( m_toolMgr );
 VECTOR2I cursorPos;
 bool ignorePrimePosition = false;
 SCH_ITEM* item = nullptr;
 bool isText = aEvent.IsAction( &EE_ACTIONS::placeSymbolText );
 COMMON_SETTINGS* common_settings = Pgm().GetCommonSettings();
 
 m_toolMgr->RunAction( EE_ACTIONS::clearSelection );
 
 m_frame->PushTool( aEvent );
 
 auto setCursor =
 [&]()
 {
 if( item )
 m_frame->GetCanvas()->SetCurrentCursor( KICURSOR::PLACE );
 else if( isText )
 m_frame->GetCanvas()->SetCurrentCursor( KICURSOR::TEXT );
 else
 m_frame->GetCanvas()->SetCurrentCursor( KICURSOR::PENCIL );
 };
 
 auto cleanup =
 [&] ()
 {
 m_toolMgr->RunAction( EE_ACTIONS::clearSelection );
 m_view->ClearPreview();
 delete item;
 item = nullptr;
 };
 
 Activate();
 // Must be done after Activate() so that it gets set into the correct context
 controls->ShowCursor( true );
 // Set initial cursor
 setCursor();
 
 if( aEvent.HasPosition() )
 {
 m_toolMgr->PrimeTool( aEvent.Position() );
 }
 else if( common_settings->m_Input.immediate_actions && !aEvent.IsReactivate() )
 {
 m_toolMgr->PrimeTool( { 0, 0 } );
 ignorePrimePosition = true;
 }
 
 // Main loop: keep receiving events
 while( TOOL_EVENT* evt = Wait() )
 {
 setCursor();
 grid.SetSnap( !evt->Modifier( MD_SHIFT ) );
 grid.SetUseGrid( getView()->GetGAL()->GetGridSnapping() && !evt->DisableGridSnapping() );
 
 cursorPos = grid.Align( controls->GetMousePosition(), grid.GetItemGrid( item ) );
 controls->ForceCursorPosition( true, cursorPos );
 
 // The tool hotkey is interpreted as a click when drawing
 bool isSyntheticClick = item && evt->IsActivate() && evt->HasPosition()
 && evt->Matches( aEvent );
 
 if( evt->IsCancelInteractive() )
 {
 m_frame->GetInfoBar()->Dismiss();
 
 if( item )
 {
 cleanup();
 }
 else
 {
 m_frame->PopTool( aEvent );
 break;
 }
 }
 else if( evt->IsActivate() && !isSyntheticClick )
 {
 if( item && evt->IsMoveTool() )
 {
 // we're already moving our own item; ignore the move tool
 evt->SetPassEvent( false );
 continue;
 }
 
 if( item )
 {
 m_frame->ShowInfoBarMsg( _( "Press <ESC> to cancel item creation." ) );
 evt->SetPassEvent( false );
 continue;
 }
 
 if( evt->IsPointEditor() )
 {
 // don't exit (the point editor runs in the background)
 }
 else if( evt->IsMoveTool() )
 {
 break;
 }
 else
 {
 m_frame->PopTool( aEvent );
 break;
 }
 }
 else if( evt->IsClick( BUT_LEFT ) || evt->IsDblClick( BUT_LEFT ) || isSyntheticClick )
 {
 LIB_SYMBOL* symbol = m_frame->GetCurSymbol();
 
 if( !symbol )
 continue;
 
 // First click creates...
 if( !item )
 {
 m_toolMgr->RunAction( EE_ACTIONS::clearSelection );
 
 switch( type )
 {
 case SCH_PIN_T:
 {
 item = pinTool->CreatePin( cursorPos, symbol );
 g_lastPin = item->m_Uuid;
 break;
 }
 case SCH_TEXT_T:
 {
 SCH_TEXT* text = new SCH_TEXT( cursorPos, wxEmptyString, LAYER_DEVICE );
 
 text->SetParent( symbol );
 
 if( m_drawSpecificUnit )
 text->SetUnit( m_frame->GetUnit() );
 
 if( m_drawSpecificBodyStyle )
 text->SetBodyStyle( m_frame->GetBodyStyle() );
 
 text->SetTextSize( VECTOR2I( schIUScale.MilsToIU( settings->m_Defaults.text_size ),
 schIUScale.MilsToIU( settings->m_Defaults.text_size ) ) );
 text->SetTextAngle( m_lastTextAngle );
 
 DIALOG_TEXT_PROPERTIES dlg( m_frame, text );
 
 if( dlg.ShowModal() != wxID_OK || NoPrintableChars( text->GetText() ) )
 delete text;
 else
 item = text;
 
 break;
 }
 default:
 wxFAIL_MSG( "TwoClickPlace(): unknown type" );
 }
 
 // If we started with a hotkey which has a position then warp back to that.
 // Otherwise update to the current mouse position pinned inside the autoscroll
 // boundaries.
 if( evt->IsPrime() && !ignorePrimePosition )
 {
 cursorPos = grid.Align( evt->Position(), grid.GetItemGrid( item ) );
 getViewControls()->WarpMouseCursor( cursorPos, true );
 }
 else
 {
 getViewControls()->PinCursorInsideNonAutoscrollArea( true );
 cursorPos = getViewControls()->GetMousePosition();
 }
 
 if( item )
 {
 item->SetPosition( VECTOR2I( cursorPos.x, -cursorPos.y ) );
 
 item->SetFlags( IS_NEW | IS_MOVING );
 m_view->ClearPreview();
 m_view->AddToPreview( item->Clone() );
 m_selectionTool->AddItemToSel( item );
 
 // update the cursor so it looks correct before another event
 setCursor();
 }
 
 controls->SetCursorPosition( cursorPos, false );
 }
 // ... and second click places:
 else
 {
 SCH_COMMIT commit( m_toolMgr );
 commit.Modify( symbol, m_frame->GetScreen() );
 
 switch( item->Type() )
 {
 case SCH_PIN_T:
 pinTool->PlacePin( static_cast<SCH_PIN*>( item ) );
 item->ClearEditFlags();
 commit.Push( _( "Add Pin" ) );
 break;
 
 case SCH_TEXT_T:
 symbol->AddDrawItem( static_cast<SCH_TEXT*>( item ) );
 item->ClearEditFlags();
 commit.Push( _( "Add Text" ) );
 break;
 
 default:
 wxFAIL_MSG( "TwoClickPlace(): unknown type" );
 }
 
 item = nullptr;
 m_view->ClearPreview();
 m_frame->RebuildView();
 }
 }
 else if( evt->IsClick( BUT_RIGHT ) )
 {
 // Warp after context menu only if dragging...
 if( !item )
 m_toolMgr->VetoContextMenuMouseWarp();
 
 m_menu.ShowContextMenu( m_selectionTool->GetSelection() );
 }
 else if( item && ( evt->IsAction( &ACTIONS::refreshPreview ) || evt->IsMotion() ) )
 {
 item->SetPosition( VECTOR2I( cursorPos.x, cursorPos.y ) );
 m_view->ClearPreview();
 m_view->AddToPreview( item->Clone() );
 }
 else
 {
 evt->SetPassEvent();
 }
 
 // Enable autopanning and cursor capture only when there is an item to be placed
 controls->SetAutoPan( item != nullptr );
 controls->CaptureCursor( item != nullptr );
 }
 
 controls->SetAutoPan( false );
 controls->CaptureCursor( false );
 controls->ForceCursorPosition( false );
 m_frame->GetCanvas()->SetCurrentCursor( KICURSOR::ARROW );
 return 0;
}
 
 
int SYMBOL_EDITOR_DRAWING_TOOLS::DrawShape( const TOOL_EVENT& aEvent )
{
 SHAPE_T requestedShape = aEvent.Parameter<SHAPE_T>();
 
 return doDrawShape( aEvent, requestedShape );
}
 
 
int SYMBOL_EDITOR_DRAWING_TOOLS::DrawSymbolTextBox( const TOOL_EVENT& aEvent )
{
 return doDrawShape( aEvent, std::nullopt /* Draw text box */ );
}
 
 
int SYMBOL_EDITOR_DRAWING_TOOLS::doDrawShape( const TOOL_EVENT& aEvent, std::optional<SHAPE_T> aDrawingShape )
{
 bool isTextBox = !aDrawingShape.has_value();
 SHAPE_T toolType = aDrawingShape.value_or( SHAPE_T::SEGMENT );
 
 KIGFX::VIEW_CONTROLS* controls = getViewControls();
 SETTINGS_MANAGER& settingsMgr = Pgm().GetSettingsManager();
 SYMBOL_EDITOR_SETTINGS* settings = settingsMgr.GetAppSettings<SYMBOL_EDITOR_SETTINGS>();
 EE_GRID_HELPER grid( m_toolMgr );
 VECTOR2I cursorPos;
 SHAPE_T shapeType = toolType == SHAPE_T::SEGMENT ? SHAPE_T::POLY : toolType;
 LIB_SYMBOL* symbol = m_frame->GetCurSymbol();
 SCH_SHAPE* item = nullptr;
 wxString description;
 
 if( m_inDrawShape )
 return 0;
 
 REENTRANCY_GUARD guard( &m_inDrawShape );
 
 // We might be running as the same shape in another co-routine. Make sure that one
 // gets whacked.
 m_toolMgr->DeactivateTool();
 
 m_toolMgr->RunAction( EE_ACTIONS::clearSelection );
 
 m_frame->PushTool( aEvent );
 
 auto setCursor =
 [&]()
 {
 m_frame->GetCanvas()->SetCurrentCursor( KICURSOR::PENCIL );
 };
 
 auto cleanup =
 [&] ()
 {
 m_toolMgr->RunAction( EE_ACTIONS::clearSelection );
 m_view->ClearPreview();
 delete item;
 item = nullptr;
 };
 
 Activate();
 // Must be done after Activate() so that it gets set into the correct context
 controls->ShowCursor( true );
 // Set initial cursor
 setCursor();
 
 if( aEvent.HasPosition() )
 m_toolMgr->PrimeTool( aEvent.Position() );
 
 // Main loop: keep receiving events
 while( TOOL_EVENT* evt = Wait() )
 {
 setCursor();
 grid.SetSnap( !evt->Modifier( MD_SHIFT ) );
 grid.SetUseGrid( getView()->GetGAL()->GetGridSnapping() && !evt->DisableGridSnapping() );
 
 cursorPos = grid.Align( controls->GetMousePosition(), grid.GetItemGrid( item ) );
 controls->ForceCursorPosition( true, cursorPos );
 
 // The tool hotkey is interpreted as a click when drawing
 bool isSyntheticClick = item && evt->IsActivate() && evt->HasPosition()
 && evt->Matches( aEvent );
 
 if( evt->IsCancelInteractive() )
 {
 if( item )
 {
 cleanup();
 }
 else
 {
 m_frame->PopTool( aEvent );
 break;
 }
 }
 else if( evt->IsActivate() && !isSyntheticClick )
 {
 if( item )
 cleanup();
 
 if( evt->IsPointEditor() )
 {
 // don't exit (the point editor runs in the background)
 }
 else if( evt->IsMoveTool() )
 {
 // leave ourselves on the stack so we come back after the move
 break;
 }
 else
 {
 m_frame->PopTool( aEvent );
 break;
 }
 }
 else if( evt->IsClick( BUT_LEFT ) && !item )
 {
 // Update in case the symbol was changed while the tool was running
 symbol = m_frame->GetCurSymbol();
 
 if( !symbol )
 continue;
 
 m_toolMgr->RunAction( EE_ACTIONS::clearSelection );
 
 int lineWidth = schIUScale.MilsToIU( settings->m_Defaults.line_width );
 
 if( isTextBox )
 {
 SCH_TEXTBOX* textbox = new SCH_TEXTBOX( LAYER_DEVICE, lineWidth, m_lastFillStyle );
 
 textbox->SetParent( symbol );
 textbox->SetTextSize( VECTOR2I( schIUScale.MilsToIU( settings->m_Defaults.text_size ),
 schIUScale.MilsToIU( settings->m_Defaults.text_size ) ) );
 
 // Must be after SetTextSize()
 textbox->SetBold( m_lastTextBold );
 textbox->SetItalic( m_lastTextItalic );
 
 textbox->SetTextAngle( m_lastTextAngle );
 textbox->SetHorizJustify( m_lastTextJust );
 
 item = textbox;
 description = _( "Add Text Box" );
 }
 else
 {
 item = new SCH_SHAPE( shapeType, LAYER_DEVICE, lineWidth, m_lastFillStyle );
 item->SetParent( symbol );
 description = wxString::Format( _( "Add %s" ), item->GetFriendlyName() );
 }
 
 item->SetStroke( m_lastStroke );
 item->SetFillColor( m_lastFillColor );
 
 item->SetFlags( IS_NEW );
 item->BeginEdit( cursorPos );
 
 if( m_drawSpecificUnit )
 item->SetUnit( m_frame->GetUnit() );
 
 if( m_drawSpecificBodyStyle )
 item->SetBodyStyle( m_frame->GetBodyStyle() );
 
 m_selectionTool->AddItemToSel( item );
 }
 else if( item && ( evt->IsClick( BUT_LEFT )
 || evt->IsDblClick( BUT_LEFT )
 || isSyntheticClick
 || evt->IsAction( &ACTIONS::finishInteractive ) ) )
 {
 if( symbol != m_frame->GetCurSymbol() )
 {
 symbol = m_frame->GetCurSymbol();
 item->SetParent( symbol );
 }
 
 if( evt->IsDblClick( BUT_LEFT ) || evt->IsAction( &ACTIONS::finishInteractive )
 || !item->ContinueEdit( VECTOR2I( cursorPos.x, -cursorPos.y ) ) )
 {
 if( toolType == SHAPE_T::POLY )
 {
 item->CalcEdit( item->GetPosition() ); // Close shape
 item->EndEdit( true );
 }
 else
 {
 item->EndEdit();
 }
 
 item->ClearEditFlags();
 
 if( isTextBox )
 {
 SCH_TEXTBOX* textbox = static_cast<SCH_TEXTBOX*>( item );
 DIALOG_TEXT_PROPERTIES dlg( m_frame, static_cast<SCH_TEXTBOX*>( item ) );
 
 // QuasiModal required for syntax help and Scintilla auto-complete
 if( dlg.ShowQuasiModal() != wxID_OK )
 {
 cleanup();
 continue;
 }
 
 m_lastTextBold = textbox->IsBold();
 m_lastTextItalic = textbox->IsItalic();
 m_lastTextAngle = textbox->GetTextAngle();
 m_lastTextJust = textbox->GetHorizJustify();
 }
 
 m_lastStroke = item->GetStroke();
 m_lastFillStyle = item->GetFillMode();
 m_lastFillColor = item->GetFillColor();
 
 m_view->ClearPreview();
 
 SCH_COMMIT commit( m_toolMgr );
 commit.Modify( symbol, m_frame->GetScreen() );
 
 symbol->AddDrawItem( item );
 item = nullptr;
 
 commit.Push( description );
 m_frame->RebuildView();
 m_toolMgr->PostAction( ACTIONS::activatePointEditor );
 }
 }
 else if( item && ( evt->IsAction( &ACTIONS::refreshPreview ) || evt->IsMotion() ) )
 {
 item->CalcEdit( cursorPos );
 m_view->ClearPreview();
 m_view->AddToPreview( item->Clone() );
 }
 else if( evt->IsDblClick( BUT_LEFT ) && !item )
 {
 m_toolMgr->RunAction( EE_ACTIONS::properties );
 }
 else if( evt->IsClick( BUT_RIGHT ) )
 {
 // Warp after context menu only if dragging...
 if( !item )
 m_toolMgr->VetoContextMenuMouseWarp();
 
 m_menu.ShowContextMenu( m_selectionTool->GetSelection() );
 }
 else
 {
 evt->SetPassEvent();
 }
 
 // Enable autopanning and cursor capture only when there is a shape being drawn
 controls->SetAutoPan( item != nullptr );
 controls->CaptureCursor( item != nullptr );
 }
 
 controls->SetAutoPan( false );
 controls->CaptureCursor( false );
 m_frame->GetCanvas()->SetCurrentCursor( KICURSOR::ARROW );
 return 0;
}
 
 
int SYMBOL_EDITOR_DRAWING_TOOLS::PlaceAnchor( const TOOL_EVENT& aEvent )
{
 m_frame->PushTool( aEvent );
 
 auto setCursor =
 [&]()
 {
 m_frame->GetCanvas()->SetCurrentCursor( KICURSOR::BULLSEYE );
 };
 
 Activate();
 // Must be done after Activate() so that it gets set into the correct context
 getViewControls()->ShowCursor( true );
 // Set initial cursor
 setCursor();
 
 // Main loop: keep receiving events
 while( TOOL_EVENT* evt = Wait() )
 {
 setCursor();
 
 if( evt->IsCancelInteractive() )
 {
 m_frame->PopTool( aEvent );
 break;
 }
 else if( evt->IsActivate() )
 {
 m_frame->PopTool( aEvent );
 break;
 }
 else if( evt->IsClick( BUT_LEFT ) || evt->IsDblClick( BUT_LEFT ) )
 {
 LIB_SYMBOL* symbol = m_frame->GetCurSymbol();
 
 if( !symbol )
 continue;
 
 VECTOR2I cursorPos = getViewControls()->GetCursorPosition( !evt->DisableGridSnapping() );
 
 symbol->Move( -cursorPos );
 
 // Refresh the view without changing the viewport
 m_view->SetCenter( m_view->GetCenter() + cursorPos );
 m_view->RecacheAllItems();
 m_frame->OnModify();
 }
 else if( evt->IsClick( BUT_RIGHT ) )
 {
 m_menu.ShowContextMenu( m_selectionTool->GetSelection() );
 }
 else
 {
 evt->SetPassEvent();
 }
 }
 
 m_frame->GetCanvas()->SetCurrentCursor( KICURSOR::ARROW );
 return 0;
}
 
 
int SYMBOL_EDITOR_DRAWING_TOOLS::ImportGraphics( const TOOL_EVENT& aEvent )
{
 LIB_SYMBOL* symbol = m_frame->GetCurSymbol();
 
 if( !symbol )
 return 0;
 
 // Note: PlaceImportedGraphics() will convert PCB_SHAPE_T and PCB_TEXT_T to footprint
 // items if needed
 DIALOG_IMPORT_GFX_SCH dlg( m_frame );
 int dlgResult = dlg.ShowModal();
 
 std::list<std::unique_ptr<EDA_ITEM>>& list = dlg.GetImportedItems();
 
 if( dlgResult != wxID_OK )
 return 0;
 
 // Ensure the list is not empty:
 if( list.empty() )
 {
 wxMessageBox( _( "No graphic items found in file." ) );
 return 0;
 }
 
 m_toolMgr->RunAction( ACTIONS::cancelInteractive );
 
 KIGFX::VIEW_CONTROLS* controls = getViewControls();
 std::vector<SCH_ITEM*> newItems; // all new items, including group
 std::vector<SCH_ITEM*> selectedItems; // the group, or newItems if no group
 EE_SELECTION preview;
 SCH_COMMIT commit( m_toolMgr );
 
 for( std::unique_ptr<EDA_ITEM>& ptr : list )
 {
 SCH_ITEM* item = dynamic_cast<SCH_ITEM*>( ptr.get() );
 wxCHECK2( item, continue );
 
 newItems.push_back( item );
 selectedItems.push_back( item );
 preview.Add( item );
 
 ptr.release();
 }
 
 if( !dlg.IsPlacementInteractive() )
 {
 commit.Modify( symbol, m_frame->GetScreen() );
 
 // Place the imported drawings
 for( SCH_ITEM* item : newItems )
 {
 symbol->AddDrawItem( item );
 item->ClearEditFlags();
 }
 
 commit.Push( _( "Import Graphic" ) );
 m_frame->RebuildView();
 
 return 0;
 }
 
 m_view->Add( &preview );
 
 // Clear the current selection then select the drawings so that edit tools work on them
 m_toolMgr->RunAction( EE_ACTIONS::clearSelection );
 
 EDA_ITEMS selItems( selectedItems.begin(), selectedItems.end() );
 m_toolMgr->RunAction<EDA_ITEMS*>( EE_ACTIONS::addItemsToSel, &selItems );
 
 m_frame->PushTool( aEvent );
 
 auto setCursor = [&]()
 {
 m_frame->GetCanvas()->SetCurrentCursor( KICURSOR::MOVING );
 };
 
 Activate();
 // Must be done after Activate() so that it gets set into the correct context
 controls->ShowCursor( true );
 controls->ForceCursorPosition( false );
 // Set initial cursor
 setCursor();
 
 //SCOPED_DRAW_MODE scopedDrawMode( m_mode, MODE::DXF );
 EE_GRID_HELPER grid( m_toolMgr );
 
 // Now move the new items to the current cursor position:
 VECTOR2I cursorPos = controls->GetCursorPosition( !aEvent.DisableGridSnapping() );
 VECTOR2I delta = cursorPos;
 VECTOR2I currentOffset;
 
 for( SCH_ITEM* item : selectedItems )
 item->Move( delta );
 
 currentOffset += delta;
 
 m_view->Update( &preview );
 
 // Main loop: keep receiving events
 while( TOOL_EVENT* evt = Wait() )
 {
 setCursor();
 
 grid.SetSnap( !evt->Modifier( MD_SHIFT ) );
 grid.SetUseGrid( getView()->GetGAL()->GetGridSnapping() && !evt->DisableGridSnapping() );
 
 cursorPos = grid.Align( controls->GetMousePosition(), GRID_GRAPHICS );
 controls->ForceCursorPosition( true, cursorPos );
 
 if( evt->IsCancelInteractive() || evt->IsActivate() )
 {
 m_toolMgr->RunAction( EE_ACTIONS::clearSelection );
 
 for( SCH_ITEM* item : newItems )
 delete item;
 
 break;
 }
 else if( evt->IsMotion() )
 {
 delta = cursorPos - currentOffset;
 
 for( SCH_ITEM* item : selectedItems )
 item->Move( delta );
 
 currentOffset += delta;
 
 m_view->Update( &preview );
 }
 else if( evt->IsClick( BUT_RIGHT ) )
 {
 m_menu.ShowContextMenu( m_selectionTool->GetSelection() );
 }
 else if( evt->IsClick( BUT_LEFT ) || evt->IsDblClick( BUT_LEFT ) )
 {
 commit.Modify( symbol, m_frame->GetScreen() );
 
 // Place the imported drawings
 for( SCH_ITEM* item : newItems )
 {
 symbol->AddDrawItem( item );
 item->ClearEditFlags();
 }
 
 commit.Push( _( "Import Graphic" ) );
 break; // This is a one-shot command, not a tool
 }
 else
 {
 evt->SetPassEvent();
 }
 }
 
 preview.Clear();
 m_view->Remove( &preview );
 
 m_frame->RebuildView();
 
 m_frame->GetCanvas()->SetCurrentCursor( KICURSOR::ARROW );
 controls->ForceCursorPosition( false );
 
 m_frame->PopTool( aEvent );
 
 return 0;
}
 
 
int SYMBOL_EDITOR_DRAWING_TOOLS::RepeatDrawItem( const TOOL_EVENT& aEvent )
{
 SYMBOL_EDITOR_PIN_TOOL* pinTool = m_toolMgr->GetTool<SYMBOL_EDITOR_PIN_TOOL>();
 LIB_SYMBOL* symbol = m_frame->GetCurSymbol();
 SCH_PIN* sourcePin = nullptr;
 
 if( !symbol )
 return 0;
 
 for( SCH_PIN* test : symbol->GetAllLibPins() )
 {
 if( test->m_Uuid == g_lastPin )
 {
 sourcePin = test;
 break;
 }
 }
 
 if( sourcePin )
 {
 SCH_PIN* pin = pinTool->RepeatPin( sourcePin );
 g_lastPin = pin->m_Uuid;
 
 m_toolMgr->RunAction( EE_ACTIONS::clearSelection );
 
 if( pin )
 m_toolMgr->RunAction<EDA_ITEM*>( EE_ACTIONS::addItemToSel, pin );
 }
 
 return 0;
}
 
 
void SYMBOL_EDITOR_DRAWING_TOOLS::setTransitions()
{
 Go( &SYMBOL_EDITOR_DRAWING_TOOLS::TwoClickPlace, EE_ACTIONS::placeSymbolPin.MakeEvent() );
 Go( &SYMBOL_EDITOR_DRAWING_TOOLS::TwoClickPlace, EE_ACTIONS::placeSymbolText.MakeEvent() );
 Go( &SYMBOL_EDITOR_DRAWING_TOOLS::DrawShape, EE_ACTIONS::drawRectangle.MakeEvent() );
 Go( &SYMBOL_EDITOR_DRAWING_TOOLS::DrawShape, EE_ACTIONS::drawCircle.MakeEvent() );
 Go( &SYMBOL_EDITOR_DRAWING_TOOLS::DrawShape, EE_ACTIONS::drawArc.MakeEvent() );
 Go( &SYMBOL_EDITOR_DRAWING_TOOLS::DrawShape, EE_ACTIONS::drawSymbolLines.MakeEvent() );
 Go( &SYMBOL_EDITOR_DRAWING_TOOLS::DrawShape, EE_ACTIONS::drawSymbolPolygon.MakeEvent() );
 Go( &SYMBOL_EDITOR_DRAWING_TOOLS::DrawSymbolTextBox, EE_ACTIONS::drawSymbolTextBox.MakeEvent() );
 Go( &SYMBOL_EDITOR_DRAWING_TOOLS::PlaceAnchor, EE_ACTIONS::placeSymbolAnchor.MakeEvent() );
 Go( &SYMBOL_EDITOR_DRAWING_TOOLS::ImportGraphics, EE_ACTIONS::importGraphics.MakeEvent() );
 Go( &SYMBOL_EDITOR_DRAWING_TOOLS::RepeatDrawItem, EE_ACTIONS::repeatDrawItem.MakeEvent() );
}