sch_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) 2019-2022 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 <tools/sch_drawing_tools.h>
#include <tools/ee_selection_tool.h>
#include <tools/ee_grid_helper.h>
#include <ee_actions.h>
#include <sch_edit_frame.h>
#include <project.h>
#include <pgm_base.h>
#include <eeschema_id.h>
#include <confirm.h>
#include <view/view_controls.h>
#include <view/view.h>
#include <sch_symbol.h>
#include <sch_no_connect.h>
#include <sch_line.h>
#include <sch_junction.h>
#include <sch_bus_entry.h>
#include <sch_text.h>
#include <sch_textbox.h>
#include <sch_sheet.h>
#include <sch_sheet_pin.h>
#include <sch_bitmap.h>
#include <schematic.h>
#include <symbol_library_common.h>
#include <eeschema_settings.h>
#include <dialogs/dialog_label_properties.h>
#include <dialogs/dialog_text_properties.h>
#include <dialogs/dialog_wire_bus_properties.h>
#include <dialogs/dialog_junction_props.h>
#include <dialogs/dialog_sheet_pin_properties.h>
#include <string_utils.h>
#include <wildcards_and_files_ext.h>
#include <wx/filedlg.h>
 
SCH_DRAWING_TOOLS::SCH_DRAWING_TOOLS() :
 EE_TOOL_BASE<SCH_EDIT_FRAME>( "eeschema.InteractiveDrawing" ),
 m_lastSheetPinType( LABEL_FLAG_SHAPE::L_INPUT ),
 m_lastGlobalLabelShape( LABEL_FLAG_SHAPE::L_INPUT ),
 m_lastNetClassFlagShape( LABEL_FLAG_SHAPE::F_ROUND ),
 m_lastTextOrientation( TEXT_SPIN_STYLE::RIGHT ),
 m_lastTextBold( false ),
 m_lastTextItalic( false ),
 m_lastTextAngle( ANGLE_0 ),
 m_lastTextJust( GR_TEXT_H_ALIGN_LEFT ),
 m_lastFillStyle( FILL_T::NO_FILL ),
 m_lastTextboxFillStyle( FILL_T::NO_FILL ),
 m_lastFillColor( COLOR4D::UNSPECIFIED ),
 m_lastTextboxFillColor( COLOR4D::UNSPECIFIED ),
 m_lastStroke( 0, PLOT_DASH_TYPE::DEFAULT, COLOR4D::UNSPECIFIED ),
 m_lastTextboxStroke( 0, PLOT_DASH_TYPE::DEFAULT, COLOR4D::UNSPECIFIED ),
 m_mruPath( wxEmptyString ),
 m_lastAutoLabelRotateOnPlacement( false ),
 m_inPlaceSymbol( false ),
 m_inDrawShape( false ),
 m_inPlaceImage( false ),
 m_inSingleClickPlace( false ),
 m_inTwoClickPlace( false ),
 m_inDrawSheet( false )
{
}
 
 
bool SCH_DRAWING_TOOLS::Init()
{
 EE_TOOL_BASE::Init();
 
 auto belowRootSheetCondition =
 [&]( const SELECTION& aSel )
 {
 return m_frame->GetCurrentSheet().Last() != &m_frame->Schematic().Root();
 };
 
 CONDITIONAL_MENU& ctxMenu = m_menu.GetMenu();
 ctxMenu.AddItem( EE_ACTIONS::leaveSheet, belowRootSheetCondition, 2 );
 
 return true;
}
 
 
int SCH_DRAWING_TOOLS::PlaceSymbol( const TOOL_EVENT& aEvent )
{
 SCH_SYMBOL* symbol = aEvent.Parameter<SCH_SYMBOL*>();
 SYMBOL_LIBRARY_FILTER filter;
 std::vector<PICKED_SYMBOL>* historyList = nullptr;
 bool ignorePrimePosition = false;
 COMMON_SETTINGS* common_settings = Pgm().GetCommonSettings();
 EE_GRID_HELPER grid( m_toolMgr );
 
 if( m_inPlaceSymbol )
 return 0;
 
 REENTRANCY_GUARD guard( &m_inPlaceSymbol );
 
 // First we need to get all instances of this sheet so we can annotate
 // whatever symbols we place on all copies
 SCH_SHEET_LIST hierarchy = m_frame->Schematic().GetSheets();
 SCH_SHEET_LIST newInstances =
 hierarchy.FindAllSheetsForScreen( m_frame->GetCurrentSheet().LastScreen() );
 newInstances.SortByPageNumbers();
 
 // Get a list of all references in the schematic to avoid duplicates wherever
 // they're placed
 SCH_REFERENCE_LIST existingRefs;
 hierarchy.GetSymbols( existingRefs );
 existingRefs.SortByReferenceOnly();
 
 if( aEvent.IsAction( &EE_ACTIONS::placeSymbol ) )
 {
 historyList = &m_symbolHistoryList;
 }
 else if (aEvent.IsAction( &EE_ACTIONS::placePower ) )
 {
 historyList = &m_powerHistoryList;
 filter.FilterPowerSymbols( true );
 }
 else
 {
 wxFAIL_MSG( "PlaceSymbol(): unexpected request" );
 }
 
 m_frame->PushTool( aEvent );
 
 auto addSymbol =
 [&]( SCH_SYMBOL* aSymbol )
 {
 m_frame->SaveCopyForRepeatItem( aSymbol );
 
 m_toolMgr->RunAction( EE_ACTIONS::clearSelection, true );
 m_selectionTool->AddItemToSel( aSymbol );
 
 aSymbol->SetParent( m_frame->GetScreen() );
 aSymbol->SetFlags( IS_NEW | IS_MOVING );
 m_frame->AddItemToScreenAndUndoList( m_frame->GetScreen(), aSymbol, false );
 
 // Set IS_MOVING again, as AddItemToScreenAndUndoList() will have cleared it.
 aSymbol->SetFlags( IS_MOVING );
 m_toolMgr->RunAction( ACTIONS::refreshPreview );
 };
 
 auto setCursor =
 [&]()
 {
 m_frame->GetCanvas()->SetCurrentCursor( symbol ? KICURSOR::MOVING
 : KICURSOR::COMPONENT );
 };
 
 auto cleanup =
 [&]()
 {
 m_toolMgr->RunAction( EE_ACTIONS::clearSelection, true );
 m_frame->RollbackSchematicFromUndo();
 existingRefs.Clear();
 hierarchy.GetSymbols( existingRefs );
 existingRefs.SortByReferenceOnly();
 symbol = nullptr;
 };
 
 auto annotate =
 [&]()
 {
 EESCHEMA_SETTINGS* cfg = m_frame->eeconfig();
 
 // Then we need to annotate all instances by sheet
 for( SCH_SHEET_PATH& instance : newInstances )
 {
 SCH_REFERENCE newReference( symbol, symbol->GetLibSymbolRef().get(), instance );
 SCH_REFERENCE_LIST refs;
 refs.AddItem( newReference );
 
 if( symbol->GetLibSymbolRef()->IsPower() )
 {
 refs.ReannotateByOptions( UNSORTED, INCREMENTAL_BY_REF, 1, existingRefs,
 true, nullptr );
 }
 else if( cfg->m_AnnotatePanel.automatic )
 {
 refs.ReannotateByOptions(
 (ANNOTATE_ORDER_T) cfg->m_AnnotatePanel.sort_order,
 (ANNOTATE_ALGO_T) cfg->m_AnnotatePanel.method,
 m_frame->Schematic().Settings().m_AnnotateStartNum, existingRefs,
 false, &hierarchy );
 
 refs.UpdateAnnotation();
 
 // Update existing refs for next iteration
 for( size_t i = 0; i < refs.GetCount(); i++ )
 existingRefs.AddItem( refs[i] );
 }
 }
 
 m_frame->GetCurrentSheet().UpdateAllScreenReferences();
 };
 
 Activate();
 
 // Must be done after Activate() so that it gets set into the correct context
 getViewControls()->ShowCursor( true );
 
 // Set initial cursor
 setCursor();
 
 // Prime the pump
 if( symbol )
 {
 addSymbol( symbol );
  annotate();
 getViewControls()->WarpMouseCursor( getViewControls()->GetMousePosition( false ) );
 }
 else 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() );
 
 VECTOR2I cursorPos = getViewControls()->GetCursorPosition( !evt->DisableGridSnapping() );
 
 // The tool hotkey is interpreted as a click when drawing
 bool isSyntheticClick = symbol && evt->IsActivate() && evt->HasPosition()
 && evt->Matches( aEvent );
 
 if( evt->IsCancelInteractive() )
 {
 m_frame->GetInfoBar()->Dismiss();
 
 if( symbol )
 {
 cleanup();
 }
 else
 {
 m_frame->PopTool( aEvent );
 break;
 }
 }
 else if( evt->IsActivate() && !isSyntheticClick )
 {
 if( symbol && evt->IsMoveTool() )
 {
 // we're already moving our own item; ignore the move tool
 evt->SetPassEvent( false );
 continue;
 }
 
 if( symbol )
 {
 m_frame->ShowInfoBarMsg( _( "Press <ESC> to cancel symbol creation." ) );
 evt->SetPassEvent( false );
 continue;
 }
 
 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 ) || evt->IsDblClick( BUT_LEFT ) || isSyntheticClick )
 {
 if( !symbol )
 {
 m_toolMgr->RunAction( EE_ACTIONS::clearSelection, true );
 
 // Pick the footprint to be placed
 bool footprintPreviews = m_frame->eeconfig()->m_Appearance.footprint_preview;
 PICKED_SYMBOL sel = m_frame->PickSymbolFromLibTree( &filter, *historyList, true,
 1, 1, footprintPreviews );
 
 LIB_SYMBOL* libSymbol = sel.LibId.IsValid() ? m_frame->GetLibSymbol( sel.LibId )
 : nullptr;
 
 if( !libSymbol )
 continue;
 
 // 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() );
 getViewControls()->WarpMouseCursor( cursorPos, true );
 }
 else
 {
 getViewControls()->PinCursorInsideNonAutoscrollArea( true );
 cursorPos = getViewControls()->GetMousePosition();
 }
 
 symbol = new SCH_SYMBOL( *libSymbol, &m_frame->GetCurrentSheet(), sel, cursorPos,
 &m_frame->Schematic() );
 addSymbol( symbol );
 annotate();
 
 if( m_frame->eeconfig()->m_AutoplaceFields.enable )
 symbol->AutoplaceFields( /* aScreen */ nullptr, /* aManual */ false );
 
 // Update cursor now that we have a symbol
 setCursor();
 }
 else
 {
 if( m_frame->eeconfig()->m_AutoplaceFields.enable )
 symbol->AutoplaceFields( /* aScreen */ nullptr, /* aManual */ false );
 
 symbol->ClearEditFlags();
 m_view->Update( symbol );
 m_frame->GetScreen()->Update( symbol );
 
 m_toolMgr->RunAction( EE_ACTIONS::trimOverlappingWires, true,
 &m_selectionTool->GetSelection() );
 m_toolMgr->RunAction( EE_ACTIONS::addNeededJunctions, true,
 &m_selectionTool->GetSelection() );
 
 m_frame->OnModify();
 
 SCH_SYMBOL* nextSymbol = nullptr;
 
 if( m_frame->eeconfig()->m_SymChooserPanel.place_all_units
 || m_frame->eeconfig()->m_SymChooserPanel.keep_symbol )
 {
 int new_unit = symbol->GetUnit();
 
 if( m_frame->eeconfig()->m_SymChooserPanel.place_all_units
 && symbol->GetUnit() < symbol->GetUnitCount() )
 {
 new_unit++;
 }
 else
 {
 new_unit = 1;
 }
 
 // We are either stepping to the next unit or next symbol
 if( m_frame->eeconfig()->m_SymChooserPanel.keep_symbol || new_unit > 1 )
 {
 nextSymbol = static_cast<SCH_SYMBOL*>( symbol->Duplicate() );
 nextSymbol->SetUnit( new_unit );
 nextSymbol->SetUnitSelection( new_unit );
 
 // Start new annotation sequence at first unit
 if( new_unit == 1 )
 nextSymbol->ClearAnnotation( nullptr, false );
 
 addSymbol( nextSymbol );
 symbol = nextSymbol; // annotate() looks at symbol, update it
 annotate();
 }
 }
 
 symbol = nextSymbol;
 }
 }
 else if( evt->IsClick( BUT_RIGHT ) )
 {
 // Warp after context menu only if dragging...
 if( !symbol )
 m_toolMgr->VetoContextMenuMouseWarp();
 
 m_menu.ShowContextMenu( m_selectionTool->GetSelection() );
 }
 else if( evt->Category() == TC_COMMAND && evt->Action() == TA_CHOICE_MENU_CHOICE )
 {
 if( *evt->GetCommandId() >= ID_POPUP_SCH_SELECT_UNIT_CMP
 && *evt->GetCommandId() <= ID_POPUP_SCH_SELECT_UNIT_SYM_MAX )
 {
 int unit = *evt->GetCommandId() - ID_POPUP_SCH_SELECT_UNIT_CMP;
 
 if( symbol )
 {
 m_frame->SelectUnit( symbol, unit );
 m_toolMgr->RunAction( ACTIONS::refreshPreview );
 }
 }
 }
 else if( symbol && ( evt->IsAction( &ACTIONS::refreshPreview ) || evt->IsMotion() ) )
 {
 symbol->SetPosition( cursorPos );
 m_view->Update( symbol );
 m_frame->SetMsgPanel( symbol );
 }
 else if( symbol && evt->IsAction( &ACTIONS::doDelete ) )
 {
 cleanup();
 }
 else
 {
 evt->SetPassEvent();
 }
 
 // Enable autopanning and cursor capture only when there is a symbol to be placed
 getViewControls()->SetAutoPan( symbol != nullptr );
 getViewControls()->CaptureCursor( symbol != nullptr );
 }
 
 getViewControls()->SetAutoPan( false );
 getViewControls()->CaptureCursor( false );
 m_frame->GetCanvas()->SetCurrentCursor( KICURSOR::ARROW );
 
 return 0;
}
 
 
int SCH_DRAWING_TOOLS::PlaceImage( const TOOL_EVENT& aEvent )
{
 SCH_BITMAP* image = aEvent.Parameter<SCH_BITMAP*>();
 bool immediateMode = image != nullptr;
 EE_GRID_HELPER grid( m_toolMgr );
 bool ignorePrimePosition = false;
 COMMON_SETTINGS* common_settings = Pgm().GetCommonSettings();
 
 if( m_inPlaceImage )
 return 0;
 
 REENTRANCY_GUARD guard( &m_inPlaceImage );
 
 m_toolMgr->RunAction( EE_ACTIONS::clearSelection, true );
 
 // Add all the drawable symbols to preview
 if( image )
 {
 image->SetPosition( getViewControls()->GetCursorPosition() );
 m_view->ClearPreview();
 m_view->AddToPreview( image, false ); // Add, but not give ownership
 }
 
 m_frame->PushTool( aEvent );
 
 auto setCursor =
 [&]()
 {
 if( image )
 m_frame->GetCanvas()->SetCurrentCursor( KICURSOR::MOVING );
 else
 m_frame->GetCanvas()->SetCurrentCursor( KICURSOR::PENCIL );
 };
 
 auto cleanup =
 [&] ()
 {
 m_toolMgr->RunAction( EE_ACTIONS::clearSelection, true );
 m_view->ClearPreview();
 delete image;
 image = nullptr;
 };
 
 Activate();
 
 // Must be done after Activate() so that it gets set into the correct context
 getViewControls()->ShowCursor( true );
 
 // Set initial cursor
 setCursor();
 
 // Prime the pump
 if( image )
 {
 m_toolMgr->RunAction( ACTIONS::refreshPreview );
 }
 else 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();
 VECTOR2I cursorPos = getViewControls()->GetCursorPosition( !evt->DisableGridSnapping() );
 
 // The tool hotkey is interpreted as a click when drawing
 bool isSyntheticClick = image && evt->IsActivate() && evt->HasPosition()
 && evt->Matches( aEvent );
 
 if( evt->IsCancelInteractive() )
 {
 m_frame->GetInfoBar()->Dismiss();
 
 if( image )
 {
 cleanup();
 }
 else
 {
 m_frame->PopTool( aEvent );
 break;
 }
 
 if( immediateMode )
 {
 m_frame->PopTool( aEvent );
 break;
 }
 }
 else if( evt->IsActivate() && !isSyntheticClick )
 {
 if( image && evt->IsMoveTool() )
 {
 // we're already moving our own item; ignore the move tool
 evt->SetPassEvent( false );
 continue;
 }
 
 if( image )
 {
 m_frame->ShowInfoBarMsg( _( "Press <ESC> to cancel image creation." ) );
 evt->SetPassEvent( false );
 continue;
 }
 
 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 ) || evt->IsDblClick( BUT_LEFT ) || isSyntheticClick )
 {
 if( !image )
 {
 m_toolMgr->RunAction( EE_ACTIONS::clearSelection, true );
 
 wxFileDialog dlg( m_frame, _( "Choose Image" ), m_mruPath, wxEmptyString,
 _( "Image Files" ) + wxS( " " ) + wxImage::GetImageExtWildcard(),
 wxFD_OPEN );
 
 if( dlg.ShowModal() != wxID_OK )
 continue;
 
 // 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() );
 getViewControls()->WarpMouseCursor( cursorPos, true );
 }
 else
 {
 getViewControls()->PinCursorInsideNonAutoscrollArea( true );
 cursorPos = getViewControls()->GetMousePosition();
 }
 
 wxString fullFilename = dlg.GetPath();
 m_mruPath = wxPathOnly( fullFilename );
 
 if( wxFileExists( fullFilename ) )
 image = new SCH_BITMAP( cursorPos );
 
 if( !image || !image->ReadImageFile( fullFilename ) )
 {
 wxMessageBox( _( "Could not load image from '%s'." ), fullFilename );
 delete image;
 image = nullptr;
 continue;
 }
 
 image->SetFlags( IS_NEW | IS_MOVING );
 
 m_frame->SaveCopyForRepeatItem( image );
 
 m_view->ClearPreview();
 m_view->AddToPreview( image, false ); // Add, but not give ownership
 m_view->RecacheAllItems(); // Bitmaps are cached in Opengl
 
 m_selectionTool->AddItemToSel( image );
 
 getViewControls()->SetCursorPosition( cursorPos, false );
 setCursor();
 }
 else
 {
 m_frame->AddItemToScreenAndUndoList( m_frame->GetScreen(), image, false );
 image = nullptr;
 m_toolMgr->RunAction( ACTIONS::activatePointEditor );
 
 m_view->ClearPreview();
 
 if( immediateMode )
 {
 m_frame->PopTool( aEvent );
 break;
 }
 }
 }
 else if( evt->IsClick( BUT_RIGHT ) )
 {
 // Warp after context menu only if dragging...
 if( !image )
 m_toolMgr->VetoContextMenuMouseWarp();
 
 m_menu.ShowContextMenu( m_selectionTool->GetSelection() );
 }
 else if( image && ( evt->IsAction( &ACTIONS::refreshPreview ) || evt->IsMotion() ) )
 {
 image->SetPosition( cursorPos );
 m_view->ClearPreview();
 m_view->AddToPreview( image, false ); // Add, but not give ownership
 m_view->RecacheAllItems(); // Bitmaps are cached in Opengl
 m_frame->SetMsgPanel( image );
 }
 else if( image && evt->IsAction( &ACTIONS::doDelete ) )
 {
 cleanup();
 }
 else
 {
 evt->SetPassEvent();
 }
 
 // Enable autopanning and cursor capture only when there is an image to be placed
 getViewControls()->SetAutoPan( image != nullptr );
 getViewControls()->CaptureCursor( image != nullptr );
 }
 
 getViewControls()->SetAutoPan( false );
 getViewControls()->CaptureCursor( false );
 m_frame->GetCanvas()->SetCurrentCursor( KICURSOR::ARROW );
 
 return 0;
}
 
 
int SCH_DRAWING_TOOLS::SingleClickPlace( const TOOL_EVENT& aEvent )
{
 VECTOR2I cursorPos;
 KICAD_T type = aEvent.Parameter<KICAD_T>();
 EE_GRID_HELPER grid( m_toolMgr );
 KIGFX::VIEW_CONTROLS* controls = getViewControls();
 SCH_ITEM* previewItem;
 bool loggedInfoBarError = false;
 
 if( m_inSingleClickPlace )
 return 0;
 
 REENTRANCY_GUARD guard( &m_inSingleClickPlace );
 
 if( type == SCH_JUNCTION_T && aEvent.HasPosition() )
 {
 EE_SELECTION& selection = m_selectionTool->GetSelection();
 SCH_LINE* wire = dynamic_cast<SCH_LINE*>( selection.Front() );
 
 if( wire )
 {
 SEG seg( wire->GetStartPoint(), wire->GetEndPoint() );
 VECTOR2I nearest = seg.NearestPoint( getViewControls()->GetCursorPosition() );
 getViewControls()->SetCrossHairCursorPosition( nearest, false );
 getViewControls()->WarpMouseCursor( getViewControls()->GetCursorPosition(), true );
 }
 }
 
 switch( type )
 {
 case SCH_NO_CONNECT_T:
 previewItem = new SCH_NO_CONNECT( cursorPos );
 previewItem->SetParent( m_frame->GetScreen() );
 break;
 
 case SCH_JUNCTION_T:
 previewItem = new SCH_JUNCTION( cursorPos );
 previewItem->SetParent( m_frame->GetScreen() );
 break;
 
 case SCH_BUS_WIRE_ENTRY_T:
 previewItem = new SCH_BUS_WIRE_ENTRY( cursorPos );
 previewItem->SetParent( m_frame->GetScreen() );
 break;
 
 case SCH_SHEET_PIN_T:
 {
 EE_SELECTION& selection = m_selectionTool->GetSelection();
 SCH_SHEET* sheet = dynamic_cast<SCH_SHEET*>( selection.Front() );
 
 if( !sheet )
 return 0;
 
 SCH_HIERLABEL* label = importHierLabel( sheet );
 
 if( !label )
 {
 m_statusPopup.reset( new STATUS_TEXT_POPUP( m_frame ) );
 m_statusPopup->SetText( _( "No new hierarchical labels found." ) );
 m_statusPopup->Move( wxGetMousePosition() + wxPoint( 20, 20 ) );
 m_statusPopup->PopupFor( 2000 );
 return 0;
 }
 
 previewItem = createSheetPin( sheet, label );
 }
 break;
 
 default:
 wxASSERT_MSG( false, "Unknown item type in SCH_DRAWING_TOOLS::SingleClickPlace" );
 return 0;
 }
 
 m_toolMgr->RunAction( EE_ACTIONS::clearSelection, true );
 
 cursorPos = static_cast<wxPoint>( aEvent.HasPosition() ?
 aEvent.Position() :
 controls->GetMousePosition() );
 
 m_frame->PushTool( aEvent );
 
 auto setCursor =
 [&]()
 {
 m_frame->GetCanvas()->SetCurrentCursor( KICURSOR::PLACE );
 };
 
 Activate();
 
 // Must be done after Activate() so that it gets set into the correct context
 getViewControls()->ShowCursor( true );
 
 // Set initial cursor
 setCursor();
 
 m_view->ClearPreview();
 m_view->AddToPreview( previewItem->Clone() );
 
 // Prime the pump
 if( aEvent.HasPosition() && type != SCH_SHEET_PIN_T )
 m_toolMgr->PrimeTool( aEvent.Position() );
 else
 m_toolMgr->RunAction( ACTIONS::refreshPreview );
 
 // 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 = evt->IsPrime() ? evt->Position() : controls->GetMousePosition();
 cursorPos = grid.BestSnapAnchor( cursorPos, LAYER_CONNECTABLE, nullptr );
 controls->ForceCursorPosition( true, cursorPos );
 
 if( evt->IsCancelInteractive() )
 {
 m_frame->PopTool( aEvent );
 break;
 }
 else if( evt->IsActivate() )
 {
 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 ) || evt->IsDblClick( BUT_LEFT ) )
 {
 if( !m_frame->GetScreen()->GetItem( cursorPos, 0, type ) )
 {
 if( type == SCH_JUNCTION_T )
 {
 if( !m_frame->GetScreen()->IsExplicitJunctionAllowed( cursorPos ) )
 {
 m_frame->ShowInfoBarError( _( "Junction location contains no joinable "
 "wires and/or pins." ) );
 loggedInfoBarError = true;
 continue;
 }
 else if( loggedInfoBarError )
 {
 m_frame->GetInfoBar()->Dismiss();
 }
 }
 
 SCH_ITEM* newItem = static_cast<SCH_ITEM*>( previewItem->Clone() );
 const_cast<KIID&>( newItem->m_Uuid ) = KIID();
 newItem->SetPosition( cursorPos );
 newItem->SetFlags( IS_NEW );
 
 m_frame->AddItemToScreenAndUndoList( m_frame->GetScreen(), newItem, false );
 
 if( type == SCH_JUNCTION_T )
 m_frame->TestDanglingEnds();
 else
 m_frame->SchematicCleanUp();
 
 m_frame->OnModify();
 }
 
 if( evt->IsDblClick( BUT_LEFT ) || type == SCH_SHEET_PIN_T ) // Finish tool.
 {
 m_frame->PopTool( aEvent );
 break;
 }
 }
 else if( evt->IsClick( BUT_RIGHT ) )
 {
 m_menu.ShowContextMenu( m_selectionTool->GetSelection() );
 }
 else if( evt->IsAction( &ACTIONS::refreshPreview ) || evt->IsMotion() )
 {
 previewItem->SetPosition( cursorPos );
 m_view->ClearPreview();
 m_view->AddToPreview( previewItem->Clone() );
 m_frame->SetMsgPanel( previewItem );
 }
 else if( evt->Category() == TC_COMMAND )
 {
 if( ( type == SCH_BUS_WIRE_ENTRY_T ) && ( evt->IsAction( &EE_ACTIONS::rotateCW )
 || evt->IsAction( &EE_ACTIONS::rotateCCW )
 || evt->IsAction( &EE_ACTIONS::mirrorV )
 || evt->IsAction( &EE_ACTIONS::mirrorH ) ) )
 {
 SCH_BUS_ENTRY_BASE* busItem = static_cast<SCH_BUS_ENTRY_BASE*>( previewItem );
 
 // The bus entries only rotate in one direction
 if( evt->IsAction( &EE_ACTIONS::rotateCW )
 || evt->IsAction( &EE_ACTIONS::rotateCCW ) )
 {
 busItem->Rotate( busItem->GetPosition() );
 }
 else if( evt->IsAction( &EE_ACTIONS::mirrorV ) )
 {
 busItem->MirrorVertically( busItem->GetPosition().x );
 }
 else if( evt->IsAction( &EE_ACTIONS::mirrorH ) )
 {
  busItem->MirrorHorizontally( busItem->GetPosition().y );
 }
 
 m_view->ClearPreview();
 m_view->AddToPreview( previewItem->Clone() );
 }
 else if( evt->IsAction( &EE_ACTIONS::properties ) )
 {
 switch( type )
 {
 case SCH_BUS_WIRE_ENTRY_T:
 {
 std::deque<SCH_ITEM*> strokeItems;
 strokeItems.push_back( previewItem );
 
 DIALOG_WIRE_BUS_PROPERTIES dlg( m_frame, strokeItems );
 
 if( dlg.ShowModal() == wxID_OK )
 {
 m_toolMgr->PostEvent( EVENTS::SelectedItemsModified );
 m_frame->OnModify();
 }
 }
 break;
 
 case SCH_JUNCTION_T:
 {
 std::deque<SCH_JUNCTION*> junctions;
 junctions.push_back( static_cast<SCH_JUNCTION*>( previewItem ) );
 
 DIALOG_JUNCTION_PROPS dlg( m_frame, junctions );
 
 if( dlg.ShowModal() == wxID_OK )
 {
 m_toolMgr->PostEvent( EVENTS::SelectedItemsModified );
 m_frame->OnModify();
 }
 }
 break;
 default:
 // Do nothing
 break;
 }
 
 m_view->ClearPreview();
 m_view->AddToPreview( previewItem->Clone() );
 }
 else
 {
 evt->SetPassEvent();
 }
 }
 else
 {
 evt->SetPassEvent();
 }
 }
 
 delete previewItem;
 m_view->ClearPreview();
 
 m_frame->GetCanvas()->SetCurrentCursor( KICURSOR::ARROW );
 controls->ForceCursorPosition( false );
 
 return 0;
}
 
 
SCH_TEXT* SCH_DRAWING_TOOLS::createNewText( const VECTOR2I& aPosition, int aType )
{
 SCHEMATIC* schematic = getModel<SCHEMATIC>();
 SCHEMATIC_SETTINGS& settings = schematic->Settings();
 SCH_TEXT* textItem = nullptr;
 SCH_LABEL_BASE* labelItem = nullptr;
 
 switch( aType )
 {
 case LAYER_NOTES:
 textItem = new SCH_TEXT( aPosition );
 break;
 
 case LAYER_LOCLABEL:
 labelItem = new SCH_LABEL( aPosition );
 textItem = labelItem;
 break;
 
 case LAYER_NETCLASS_REFS:
 labelItem = new SCH_DIRECTIVE_LABEL( aPosition );
 labelItem->SetShape( m_lastNetClassFlagShape );
 labelItem->GetFields().emplace_back( SCH_FIELD( {0,0}, 0, labelItem, wxT( "Netclass" ) ) );
 labelItem->GetFields().back().SetItalic( true );
 labelItem->GetFields().back().SetVisible( true );
 textItem = labelItem;
 break;
 
 case LAYER_HIERLABEL:
 labelItem = new SCH_HIERLABEL( aPosition );
 labelItem->SetShape( m_lastGlobalLabelShape );
 labelItem->SetAutoRotateOnPlacement( m_lastAutoLabelRotateOnPlacement );
 textItem = labelItem;
 break;
 
 case LAYER_GLOBLABEL:
 labelItem = new SCH_GLOBALLABEL( aPosition );
 labelItem->SetShape( m_lastGlobalLabelShape );
 labelItem->GetFields()[0].SetVisible( settings.m_IntersheetRefsShow );
 labelItem->SetAutoRotateOnPlacement( m_lastAutoLabelRotateOnPlacement );
 textItem = labelItem;
 break;
 
 default:
 wxFAIL_MSG( "SCH_EDIT_FRAME::CreateNewText() unknown layer type" );
 return nullptr;
 }
 
 textItem->SetParent( schematic );
 
 if( aType != LAYER_NETCLASS_REFS )
 {
 textItem->SetBold( m_lastTextBold );
 textItem->SetItalic( m_lastTextItalic );
 }
 
 textItem->SetTextSpinStyle( m_lastTextOrientation );
 textItem->SetTextSize( wxSize( settings.m_DefaultTextSize, settings.m_DefaultTextSize ) );
 textItem->SetFlags( IS_NEW | IS_MOVING );
 
 if( !labelItem )
 {
 DIALOG_TEXT_PROPERTIES dlg( m_frame, textItem );
 
 // Must be quasi modal for syntax help
 if( dlg.ShowQuasiModal() != wxID_OK )
 {
 delete textItem;
 return nullptr;
 }
 }
 else
 {
 DIALOG_LABEL_PROPERTIES dlg( m_frame, static_cast<SCH_LABEL_BASE*>( textItem ) );
 
 // Must be quasi modal for syntax help
 if( dlg.ShowQuasiModal() != wxID_OK )
 {
 delete labelItem;
 return nullptr;
 }
 }
 
 wxString text = textItem->GetText();
 
 if( textItem->Type() != SCH_DIRECTIVE_LABEL_T && NoPrintableChars( text ) )
 {
 delete textItem;
 return nullptr;
 }
 
 if( aType != LAYER_NETCLASS_REFS )
 {
 m_lastTextBold = textItem->IsBold();
 m_lastTextItalic = textItem->IsItalic();
 }
 
 m_lastTextOrientation = textItem->GetTextSpinStyle();
 
 if( aType == LAYER_GLOBLABEL || aType == LAYER_HIERLABEL )
 {
 m_lastGlobalLabelShape = labelItem->GetShape();
 m_lastAutoLabelRotateOnPlacement = labelItem->AutoRotateOnPlacement();
 }
 else if( aType == LAYER_NETCLASS_REFS )
 {
 m_lastNetClassFlagShape = labelItem->GetShape();
 }
 
 return textItem;
}
 
 
SCH_HIERLABEL* SCH_DRAWING_TOOLS::importHierLabel( SCH_SHEET* aSheet )
{
 if( !aSheet->GetScreen() )
 return nullptr;
 
 for( EDA_ITEM* item : aSheet->GetScreen()->Items().OfType( SCH_HIER_LABEL_T ) )
 {
 SCH_HIERLABEL* label = static_cast<SCH_HIERLABEL*>( item );
 
 /* A global label has been found: check if there a corresponding sheet label. */
 if( !aSheet->HasPin( label->GetText() ) )
 return label;
 }
 
 return nullptr;
}
 
 
SCH_SHEET_PIN* SCH_DRAWING_TOOLS::createSheetPin( SCH_SHEET* aSheet, SCH_HIERLABEL* aLabel )
{
 SCHEMATIC_SETTINGS& settings = aSheet->Schematic()->Settings();
 wxString text;
 SCH_SHEET_PIN* sheetPin;
 
 if( aLabel )
 {
 text = aLabel->GetText();
 m_lastSheetPinType = aLabel->GetShape();
 }
 
 sheetPin = new SCH_SHEET_PIN( aSheet, VECTOR2I( 0, 0 ), text );
 sheetPin->SetFlags( IS_NEW );
 sheetPin->SetTextSize( wxSize( settings.m_DefaultTextSize, settings.m_DefaultTextSize ) );
 sheetPin->SetShape( m_lastSheetPinType );
 
 if( !aLabel )
 {
 DIALOG_SHEET_PIN_PROPERTIES dlg( m_frame, sheetPin );
 
 if( dlg.ShowModal() != wxID_OK || NoPrintableChars( sheetPin->GetText() ) )
 {
 delete sheetPin;
 return nullptr;
 }
 }
 
 m_lastSheetPinType = sheetPin->GetShape();
 
 sheetPin->SetPosition( (VECTOR2I) getViewControls()->GetCursorPosition() );
 
 return sheetPin;
}
 
 
int SCH_DRAWING_TOOLS::TwoClickPlace( const TOOL_EVENT& aEvent )
{
 SCH_ITEM* item = nullptr;
 KIGFX::VIEW_CONTROLS* controls = getViewControls();
 EE_GRID_HELPER grid( m_toolMgr );
 bool ignorePrimePosition = false;
 COMMON_SETTINGS* common_settings = Pgm().GetCommonSettings();
 
 if( m_inTwoClickPlace )
 return 0;
 
 REENTRANCY_GUARD guard( &m_inTwoClickPlace );
 
 bool isText = aEvent.IsAction( &EE_ACTIONS::placeSchematicText );
 bool isGlobalLabel = aEvent.IsAction( &EE_ACTIONS::placeGlobalLabel );
 bool isHierLabel = aEvent.IsAction( &EE_ACTIONS::placeHierLabel );
 bool isClassLabel = aEvent.IsAction( &EE_ACTIONS::placeClassLabel );
 bool isNetLabel = aEvent.IsAction( &EE_ACTIONS::placeLabel );
 bool isSheetPin = aEvent.IsAction( &EE_ACTIONS::importSheetPin );
 int snapLayer = isText ? LAYER_GRAPHICS : LAYER_CONNECTABLE;
 
 m_toolMgr->RunAction( EE_ACTIONS::clearSelection, true );
 
 m_frame->PushTool( aEvent );
 auto setCursor =
 [&]()
 {
 if( item )
 m_frame->GetCanvas()->SetCurrentCursor( KICURSOR::PLACE );
 else if( isText )
 m_frame->GetCanvas()->SetCurrentCursor( KICURSOR::TEXT );
 else if( isGlobalLabel )
 m_frame->GetCanvas()->SetCurrentCursor( KICURSOR::LABEL_GLOBAL );
 else if( isNetLabel )
 m_frame->GetCanvas()->SetCurrentCursor( KICURSOR::LABEL_NET );
 else if( isClassLabel )
 m_frame->GetCanvas()->SetCurrentCursor( KICURSOR::LABEL_NET ); // JEY TODO: netclass directive cursor
 else if( isHierLabel )
 m_frame->GetCanvas()->SetCurrentCursor( KICURSOR::LABEL_HIER );
 else
 m_frame->GetCanvas()->SetCurrentCursor( KICURSOR::PENCIL );
 };
 
 auto updatePreview =
 [&]()
 {
 m_view->ClearPreview();
 m_view->AddToPreview( item->Clone() );
 item->RunOnChildren( [&]( SCH_ITEM* aChild )
 {
 m_view->AddToPreview( aChild->Clone() );
 } );
 m_frame->SetMsgPanel( item );
 };
 
 auto cleanup =
 [&]()
 {
 m_toolMgr->RunAction( EE_ACTIONS::clearSelection, true );
 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()
 && ( isText || isGlobalLabel || isHierLabel || isClassLabel || isNetLabel ) )
 {
 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() );
 
 VECTOR2I cursorPos = controls->GetMousePosition();
 cursorPos = grid.BestSnapAnchor( cursorPos, snapLayer, 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 )
 {
 // First click creates...
 if( !item )
 {
 m_toolMgr->RunAction( EE_ACTIONS::clearSelection, true );
 
 if( isText )
 {
 item = createNewText( cursorPos, LAYER_NOTES );
 }
 else if( isHierLabel )
 {
 item = createNewText( cursorPos, LAYER_HIERLABEL );
 }
 else if( isNetLabel || isGlobalLabel )
 {
 wxString netName;
 
 for( SCH_ITEM* overlapItem :
 m_frame->GetScreen()->Items().Overlapping( cursorPos ) )
 {
 if( overlapItem->GetEditFlags() & STRUCT_DELETED )
 continue;
 
 if( overlapItem->Type() == SCH_LINE_T )
 {
 SCH_LINE* line = static_cast<SCH_LINE*>( overlapItem );
 if( line->IsWire() )
 {
 netName = line->GetNetname(m_frame->GetCurrentSheet());
 break;
  }
 }
 }
 
 if( netName.IsEmpty() )
 {
 // no connected net label found -> open up the new label dialog
 if( isGlobalLabel )
 item = createNewText( cursorPos, LAYER_GLOBLABEL );
 else
 item = createNewText( cursorPos, LAYER_LOCLABEL );
 }
 else
 {
 // connected net label found -> create the label immediately
 SCHEMATIC* schematic = getModel<SCHEMATIC>();
 SCHEMATIC_SETTINGS& sch_settings = schematic->Settings();
 SCH_LABEL_BASE* labelItem = nullptr;
 
 if( isGlobalLabel )
 {
 labelItem = new SCH_GLOBALLABEL( cursorPos );
 labelItem->SetShape( m_lastGlobalLabelShape );
 // make intersheets reference visible based on settings
 labelItem->GetFields()[0].SetVisible( sch_settings.m_IntersheetRefsShow );
 }
 else
 {
 labelItem = new SCH_LABEL( cursorPos );
 }
 
 labelItem->SetParent( getModel<SCHEMATIC>() );
 labelItem->SetBold( m_lastTextBold );
 labelItem->SetItalic( m_lastTextItalic );
 labelItem->SetTextSpinStyle( m_lastTextOrientation );
 labelItem->SetTextSize( wxSize( sch_settings.m_DefaultTextSize,
 sch_settings.m_DefaultTextSize ) );
 labelItem->SetFlags( IS_NEW | IS_MOVING );
 labelItem->SetText( netName );
 item = labelItem;
 }
 }
 else if( isClassLabel )
 {
 item = createNewText( cursorPos, LAYER_NETCLASS_REFS );
 }
 else if( isSheetPin )
 {
 EDA_ITEM* i;
 SCH_HIERLABEL* label = nullptr;
 SCH_SHEET* sheet = nullptr;
 
 if( m_selectionTool->SelectPoint( cursorPos, { SCH_SHEET_T }, &i ) )
 sheet = dynamic_cast<SCH_SHEET*>( i );
 
 m_selectionTool->ClearSelection();
 
 if( !sheet )
 {
 m_statusPopup.reset( new STATUS_TEXT_POPUP( m_frame ) );
 m_statusPopup->SetText( _( "Click over a sheet." ) );
 m_statusPopup->Move( wxGetMousePosition() + wxPoint( 20, 20 ) );
 m_statusPopup->PopupFor( 2000 );
 item = nullptr;
 }
 else
 {
 label = importHierLabel( sheet );
 
 if( !label )
 {
 m_statusPopup.reset( new STATUS_TEXT_POPUP( m_frame ) );
 m_statusPopup->SetText( _( "No new hierarchical labels found." ) );
 m_statusPopup->Move( wxGetMousePosition() + wxPoint( 20, 20 ) );
 m_statusPopup->PopupFor( 2000 );
 item = nullptr;
 }
 else
 {
 item = createSheetPin( sheet, label );
 
 if( item->Type() == SCH_SHEET_PIN_T )
 {
 item->ClearSelected();
 }
 }
 }
 }
 
 // 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() );
 getViewControls()->WarpMouseCursor( cursorPos, true );
 }
 else
 {
 getViewControls()->PinCursorInsideNonAutoscrollArea( true );
 cursorPos = getViewControls()->GetMousePosition();
 }
 
 if( item )
 {
 item->SetPosition( cursorPos );
 
 item->SetFlags( IS_NEW | IS_MOVING );
 item->AutoplaceFields( /* aScreen */ nullptr, /* aManual */ false );
 updatePreview();
 
 if( item->Type() != SCH_SHEET_PIN_T )
 m_selectionTool->AddItemToSel( item );
 
 m_toolMgr->RunAction( ACTIONS::refreshPreview );
 
 // update the cursor so it looks correct before another event
 setCursor();
 }
 
 controls->SetCursorPosition( cursorPos, false );
 }
 else // ... and second click places:
 {
 item->ClearFlags( IS_MOVING );
 m_frame->AddItemToScreenAndUndoList( m_frame->GetScreen(), item, false );
 item = nullptr;
 
 m_view->ClearPreview();
 }
 }
 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->IsSelectionEvent() )
 {
 // This happens if our text was replaced out from under us by ConvertTextType()
 EE_SELECTION& selection = m_selectionTool->GetSelection();
 
 if( selection.GetSize() == 1 )
 {
 item = (SCH_ITEM*) selection.Front();
 updatePreview();
 }
 else
 {
 item = nullptr;
 }
 }
 else if( item && ( evt->IsAction( &ACTIONS::refreshPreview ) || evt->IsMotion() ) )
 {
 item->SetPosition( cursorPos );
 item->AutoplaceFields( /* aScreen */ nullptr, /* aManual */ false );
 updatePreview();
 }
 else if( item && evt->IsAction( &ACTIONS::doDelete ) )
 {
 cleanup();
 }
 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 SCH_DRAWING_TOOLS::DrawShape( const TOOL_EVENT& aEvent )
{
 SCHEMATIC* schematic = getModel<SCHEMATIC>();
 SCHEMATIC_SETTINGS& sch_settings = schematic->Settings();
 SCH_SHAPE* item = nullptr;
 bool isTextBox = aEvent.IsAction( &EE_ACTIONS::drawTextBox );
 SHAPE_T type = aEvent.Parameter<SHAPE_T>();
 
 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, true );
 
 m_frame->PushTool( aEvent );
 
 auto setCursor =
 [&]()
 {
 m_frame->GetCanvas()->SetCurrentCursor( KICURSOR::PENCIL );
 };
 
 auto cleanup =
 [&] ()
 {
 m_toolMgr->RunAction( EE_ACTIONS::clearSelection, true );
 m_view->ClearPreview();
 delete item;
 item = nullptr;
 };
 
 Activate();
 
 // Must be done after Activate() so that it gets set into the correct context
 getViewControls()->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();
 
 VECTOR2I cursorPos = getViewControls()->GetCursorPosition( !evt->DisableGridSnapping() );
 
 // 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 && evt->IsMoveTool() )
 {
 // we're already drawing our own item; ignore the move tool
 evt->SetPassEvent( false );
 continue;
 }
 
 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 )
 {
 m_toolMgr->RunAction( EE_ACTIONS::clearSelection, true );
 
 if( isTextBox )
 {
 SCH_TEXTBOX* textbox = new SCH_TEXTBOX( 0, m_lastTextboxFillStyle );
 
 textbox->SetBold( m_lastTextBold );
 textbox->SetItalic( m_lastTextItalic );
 textbox->SetTextSize( wxSize( sch_settings.m_DefaultTextSize,
 sch_settings.m_DefaultTextSize ) );
 textbox->SetTextAngle( m_lastTextAngle );
 textbox->SetHorizJustify( m_lastTextJust );
 textbox->SetStroke( m_lastTextboxStroke );
 textbox->SetFillColor( m_lastTextboxFillColor );
 
 item = textbox;
 }
 else
 {
 item = new SCH_SHAPE( type, 0, m_lastFillStyle );
 
 item->SetStroke( m_lastStroke );
 item->SetFillColor( m_lastFillColor );
 }
 
 item->SetFlags( IS_NEW );
 item->BeginEdit( cursorPos );
 
 m_view->ClearPreview();
 m_view->AddToPreview( item->Clone() );
 }
 else if( item && ( evt->IsClick( BUT_LEFT )
 || evt->IsDblClick( BUT_LEFT )
 || isSyntheticClick
 || evt->IsAction( &EE_ACTIONS::finishDrawing ) ) )
 {
 if( evt->IsDblClick( BUT_LEFT )
 || evt->IsAction( &EE_ACTIONS::finishDrawing )
 || !item->ContinueEdit( cursorPos ) )
 {
 item->EndEdit();
 item->ClearEditFlags();
 item->SetFlags( IS_NEW );
 
 if( isTextBox )
 {
 SCH_TEXTBOX* textbox = static_cast<SCH_TEXTBOX*>( item );
 DIALOG_TEXT_PROPERTIES dlg( m_frame, textbox );
 
 // This is modal not quasi to protect against place symbol calls starting
 // TwoClickPlace wait routines in the middle
 if( dlg.ShowModal() != wxID_OK )
 {
 cleanup();
 continue;
 }
 
 m_lastTextBold = textbox->IsBold();
 m_lastTextItalic = textbox->IsItalic();
 m_lastTextAngle = textbox->GetTextAngle();
 m_lastTextJust = textbox->GetHorizJustify();
 m_lastTextboxStroke = textbox->GetStroke();
 m_lastTextboxFillStyle = textbox->GetFillMode();
 m_lastTextboxFillColor = textbox->GetFillColor();
 }
 else
 {
 m_lastStroke = item->GetStroke();
 m_lastFillStyle = item->GetFillMode();
 m_lastFillColor = item->GetFillColor();
 }
 
 m_frame->AddItemToScreenAndUndoList( m_frame->GetScreen(), item, false );
 m_selectionTool->AddItemToSel( item );
 item = nullptr;
 
 m_view->ClearPreview();
 m_toolMgr->RunAction( ACTIONS::activatePointEditor );
 }
 }
 else if( item && ( evt->IsAction( &ACTIONS::refreshPreview ) || evt->IsMotion() ) )
 {
 item->CalcEdit( cursorPos );
 m_view->ClearPreview();
 m_view->AddToPreview( item->Clone() );
 m_frame->SetMsgPanel( item );
 }
 else if( evt->IsDblClick( BUT_LEFT ) && !item )
 {
 m_toolMgr->RunAction( EE_ACTIONS::properties, true );
 }
 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
 getViewControls()->SetAutoPan( item != nullptr );
 getViewControls()->CaptureCursor( item != nullptr );
 }
 
 getViewControls()->SetAutoPan( false );
 getViewControls()->CaptureCursor( false );
 m_frame->GetCanvas()->SetCurrentCursor( KICURSOR::ARROW );
 return 0;
}
 
 
int SCH_DRAWING_TOOLS::DrawSheet( const TOOL_EVENT& aEvent )
{
 SCH_SHEET* sheet = nullptr;
 
 if( m_inDrawSheet )
 return 0;
 
 REENTRANCY_GUARD guard( &m_inDrawSheet );
 
 m_toolMgr->RunAction( EE_ACTIONS::clearSelection, true );
 
 m_frame->PushTool( aEvent );
 
 auto setCursor =
  [&]()
 {
 m_frame->GetCanvas()->SetCurrentCursor( KICURSOR::PENCIL );
 };
 
 auto cleanup =
 [&] ()
 {
 m_toolMgr->RunAction( EE_ACTIONS::clearSelection, true );
 m_view->ClearPreview();
 delete sheet;
 sheet = nullptr;
 };
 
 Activate();
 
 // Must be done after Activate() so that it gets set into the correct context
 getViewControls()->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();
 
 VECTOR2I cursorPos = getViewControls()->GetCursorPosition( !evt->DisableGridSnapping() );
 
 // The tool hotkey is interpreted as a click when drawing
 bool isSyntheticClick = sheet && evt->IsActivate() && evt->HasPosition()
 && evt->Matches( aEvent );
 
 if( evt->IsCancelInteractive() )
 {
 m_frame->GetInfoBar()->Dismiss();
 
 if( sheet )
 {
 cleanup();
 }
 else
 {
 m_frame->PopTool( aEvent );
 break;
 }
 }
 else if( evt->IsActivate() && !isSyntheticClick )
 {
 if( sheet && evt->IsMoveTool() )
 {
 // we're already drawing our own item; ignore the move tool
 evt->SetPassEvent( false );
 continue;
 }
 
 if( sheet )
 {
 m_frame->ShowInfoBarMsg( _( "Press <ESC> to cancel sheet creation." ) );
 evt->SetPassEvent( false );
 continue;
 }
 
 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( !sheet && ( evt->IsClick( BUT_LEFT ) || evt->IsDblClick( BUT_LEFT ) ) )
 {
 EE_SELECTION& selection = m_selectionTool->GetSelection();
 EESCHEMA_SETTINGS* cfg = m_frame->eeconfig();
 
 if( selection.Size() == 1
 && selection.Front()->Type() == SCH_SHEET_T
 && selection.Front()->GetBoundingBox().Contains( cursorPos ) )
 {
 if( evt->IsClick( BUT_LEFT ) )
 {
 // sheet already selected
 continue;
 }
 else if( evt->IsDblClick( BUT_LEFT ) )
 {
 m_toolMgr->RunAction( EE_ACTIONS::enterSheet, false );
 break;
 }
 }
 
 m_toolMgr->RunAction( EE_ACTIONS::clearSelection, true );
 
 sheet = new SCH_SHEET( m_frame->GetCurrentSheet().Last(), cursorPos );
 sheet->SetFlags( IS_NEW | IS_RESIZING );
 sheet->SetScreen( nullptr );
 sheet->SetBorderWidth( schIUScale.MilsToIU( cfg->m_Drawing.default_line_thickness ) );
 sheet->SetBorderColor( cfg->m_Drawing.default_sheet_border_color );
 sheet->SetBackgroundColor( cfg->m_Drawing.default_sheet_background_color );
 sheet->GetFields()[ SHEETNAME ].SetText( "Untitled Sheet" );
 sheet->GetFields()[ SHEETFILENAME ].SetText( "untitled." + KiCadSchematicFileExtension );
 sizeSheet( sheet, cursorPos );
 
 m_view->ClearPreview();
 m_view->AddToPreview( sheet->Clone() );
 }
 else if( sheet && ( evt->IsClick( BUT_LEFT )
 || evt->IsDblClick( BUT_LEFT )
 || isSyntheticClick
 || evt->IsAction( &EE_ACTIONS::finishSheet ) ) )
 {
 m_view->ClearPreview();
 getViewControls()->SetAutoPan( false );
 getViewControls()->CaptureCursor( false );
 
 // Find the list of paths in the hierarchy that refer to the destination sheet where
 // the new sheet will be drawn
 SCH_SCREEN* currentScreen = m_frame->GetCurrentSheet().LastScreen();
 SCH_SHEET_LIST hierarchy = m_frame->Schematic().GetSheets();
 SCH_SHEET_LIST instances = hierarchy.FindAllSheetsForScreen( currentScreen );
 instances.SortByPageNumbers();
 
 int pageNum = static_cast<int>( hierarchy.size() ) + 1;
 
 // Set a page number for all the instances of the new sheet in the hierarchy
 for( SCH_SHEET_PATH& instance : instances )
 {
 SCH_SHEET_PATH sheetPath = instance;
 sheetPath.push_back( sheet );
 instance.SetPageNumber( wxString::Format( "%d", pageNum++ ) );
 }
 
 if( m_frame->EditSheetProperties( static_cast<SCH_SHEET*>( sheet ),
 &m_frame->GetCurrentSheet(), nullptr ) )
 {
 sheet->AutoplaceFields( /* aScreen */ nullptr, /* aManual */ false );
 
 m_frame->AddItemToScreenAndUndoList( m_frame->GetScreen(), sheet, false );
 m_frame->UpdateHierarchyNavigator();
 m_selectionTool->AddItemToSel( sheet );
 }
 else
 {
 delete sheet;
 }
 
 sheet = nullptr;
 }
 else if( sheet && ( evt->IsAction( &ACTIONS::refreshPreview ) || evt->IsMotion() ) )
 {
 sizeSheet( sheet, cursorPos );
 m_view->ClearPreview();
 m_view->AddToPreview( sheet->Clone() );
 m_frame->SetMsgPanel( sheet );
 }
 else if( evt->IsClick( BUT_RIGHT ) )
 {
 // Warp after context menu only if dragging...
 if( !sheet )
 m_toolMgr->VetoContextMenuMouseWarp();
 
 m_menu.ShowContextMenu( m_selectionTool->GetSelection() );
 }
 else
 {
 evt->SetPassEvent();
 }
 
 // Enable autopanning and cursor capture only when there is a sheet to be placed
 getViewControls()->SetAutoPan( sheet != nullptr );
 getViewControls()->CaptureCursor( sheet != nullptr );
 }
 
 getViewControls()->SetAutoPan( false );
 getViewControls()->CaptureCursor( false );
 m_frame->GetCanvas()->SetCurrentCursor( KICURSOR::ARROW );
 
 return 0;
}
 
 
void SCH_DRAWING_TOOLS::sizeSheet( SCH_SHEET* aSheet, const VECTOR2I& aPos )
{
 VECTOR2I pos = aSheet->GetPosition();
 VECTOR2I size = aPos - pos;
 
 size.x = std::max( size.x, schIUScale.MilsToIU( MIN_SHEET_WIDTH ) );
 size.y = std::max( size.y, schIUScale.MilsToIU( MIN_SHEET_HEIGHT ) );
 
 VECTOR2I grid = m_frame->GetNearestGridPosition( pos + size );
 aSheet->Resize( wxSize( grid.x - pos.x, grid.y - pos.y ) );
}
 
 
void SCH_DRAWING_TOOLS::setTransitions()
{
 Go( &SCH_DRAWING_TOOLS::PlaceSymbol, EE_ACTIONS::placeSymbol.MakeEvent() );
 Go( &SCH_DRAWING_TOOLS::PlaceSymbol, EE_ACTIONS::placePower.MakeEvent() );
 Go( &SCH_DRAWING_TOOLS::SingleClickPlace, EE_ACTIONS::placeNoConnect.MakeEvent() );
 Go( &SCH_DRAWING_TOOLS::SingleClickPlace, EE_ACTIONS::placeJunction.MakeEvent() );
 Go( &SCH_DRAWING_TOOLS::SingleClickPlace, EE_ACTIONS::placeBusWireEntry.MakeEvent() );
 Go( &SCH_DRAWING_TOOLS::TwoClickPlace, EE_ACTIONS::placeLabel.MakeEvent() );
 Go( &SCH_DRAWING_TOOLS::TwoClickPlace, EE_ACTIONS::placeClassLabel.MakeEvent() );
 Go( &SCH_DRAWING_TOOLS::TwoClickPlace, EE_ACTIONS::placeHierLabel.MakeEvent() );
 Go( &SCH_DRAWING_TOOLS::TwoClickPlace, EE_ACTIONS::placeGlobalLabel.MakeEvent() );
 Go( &SCH_DRAWING_TOOLS::DrawSheet, EE_ACTIONS::drawSheet.MakeEvent() );
 Go( &SCH_DRAWING_TOOLS::TwoClickPlace, EE_ACTIONS::importSheetPin.MakeEvent() );
 Go( &SCH_DRAWING_TOOLS::SingleClickPlace, EE_ACTIONS::importSingleSheetPin.MakeEvent() );
 Go( &SCH_DRAWING_TOOLS::TwoClickPlace, EE_ACTIONS::placeSchematicText.MakeEvent() );
 Go( &SCH_DRAWING_TOOLS::DrawShape, EE_ACTIONS::drawRectangle.MakeEvent() );
 Go( &SCH_DRAWING_TOOLS::DrawShape, EE_ACTIONS::drawCircle.MakeEvent() );
 Go( &SCH_DRAWING_TOOLS::DrawShape, EE_ACTIONS::drawArc.MakeEvent() );
 Go( &SCH_DRAWING_TOOLS::DrawShape, EE_ACTIONS::drawTextBox.MakeEvent() );
 Go( &SCH_DRAWING_TOOLS::PlaceImage, EE_ACTIONS::placeImage.MakeEvent() );
}