int EDIT_TOOL::Rotate( const TOOL_EVENT& aEvent )
{
    const SELECTION& selection = m_selectionTool->GetSelection();
    PCB_BASE_EDIT_FRAME* editFrame = getEditFrame<PCB_BASE_EDIT_FRAME>();

    // Shall the selection be cleared at the end?
    bool unselect = selection.Empty();

    if( !hoverSelection() || m_selectionTool->CheckLock() == SELECTION_LOCKED )
        return 0;

    wxPoint rotatePoint = getModificationPoint( selection );

    for( unsigned int i = 0; i < selection.items.GetCount(); ++i )
    {
        BOARD_ITEM* item = selection.Item<BOARD_ITEM>( i );
        m_commit->Modify( item );
        item->Rotate( rotatePoint, editFrame->GetRotationAngle() );
    }

    if( !m_dragging )
        m_commit->Push( _( "Rotate" ) );

    if( unselect )
        m_toolMgr->RunAction( COMMON_ACTIONS::selectionClear, true );

    // TODO selectionModified
    m_toolMgr->RunAction( COMMON_ACTIONS::editModifiedSelection, true );

    return 0;
}
int EDIT_TOOL::Rotate( TOOL_EVENT& aEvent )
{
    const SELECTION& selection = m_selectionTool->GetSelection();
    PCB_BASE_EDIT_FRAME* editFrame = getEditFrame<PCB_BASE_EDIT_FRAME>();

    // Shall the selection be cleared at the end?
    bool unselect = selection.Empty();

    if( !makeSelection( selection ) || m_selectionTool->CheckLock() )
    {
        setTransitions();

        return 0;
    }

    wxPoint rotatePoint = getModificationPoint( selection );

    if( !m_dragging )   // If it is being dragged, then it is already saved with UR_CHANGED flag
    {
        editFrame->OnModify();
        editFrame->SaveCopyInUndoList( selection.items, UR_ROTATED, rotatePoint );
    }

    for( unsigned int i = 0; i < selection.items.GetCount(); ++i )
    {
        BOARD_ITEM* item = selection.Item<BOARD_ITEM>( i );

        item->Rotate( rotatePoint, editFrame->GetRotationAngle() );

        if( !m_dragging )
            item->ViewUpdate( KIGFX::VIEW_ITEM::GEOMETRY );
    }

    updateRatsnest( m_dragging );

    // Update dragging offset (distance between cursor and the first dragged item)
    m_offset = static_cast<BOARD_ITEM*>( selection.items.GetPickedItem( 0 ) )->GetPosition() -
                                         rotatePoint;

    if( m_dragging )
        selection.group->ViewUpdate( KIGFX::VIEW_ITEM::GEOMETRY );
    else
        getModel<BOARD>()->GetRatsnest()->Recalculate();

    if( unselect )
        m_toolMgr->RunAction( COMMON_ACTIONS::selectionClear, true );

    m_toolMgr->RunAction( COMMON_ACTIONS::pointEditorUpdate, true );
    setTransitions();

    return 0;
}
int EDIT_TOOL::Properties( const TOOL_EVENT& aEvent )
{
    const SELECTION& selection = m_selectionTool->GetSelection();
    PCB_BASE_EDIT_FRAME* editFrame = getEditFrame<PCB_BASE_EDIT_FRAME>();

    // Shall the selection be cleared at the end?
    bool unselect = selection.Empty();

    if( !hoverSelection( false ) )
        return 0;

    // Tracks & vias are treated in a special way:
    if( ( SELECTION_CONDITIONS::OnlyTypes( GENERAL_COLLECTOR::Tracks ) )( selection ) )
    {
        DIALOG_TRACK_VIA_PROPERTIES dlg( editFrame, selection );

        if( dlg.ShowModal() )
        {
            dlg.Apply( *m_commit );
            m_commit->Push( _( "Edit track/via properties" ) );
        }
    }
    else if( selection.Size() == 1 ) // Properties are displayed when there is only one item selected
    {
        // Display properties dialog
        BOARD_ITEM* item = selection.Item<BOARD_ITEM>( 0 );

        // Some of properties dialogs alter pointers, so we should deselect them
        m_toolMgr->RunAction( COMMON_ACTIONS::selectionClear, true );

        // Store flags, so they can be restored later
        STATUS_FLAGS flags = item->GetFlags();
        item->ClearFlags();

        // Do not handle undo buffer, it is done by the properties dialogs @todo LEGACY
        // Display properties dialog provided by the legacy canvas frame
        editFrame->OnEditItemRequest( NULL, item );

        m_toolMgr->RunAction( COMMON_ACTIONS::editModifiedSelection, true );
        item->SetFlags( flags );
    }

    if( unselect )
        m_toolMgr->RunAction( COMMON_ACTIONS::selectionClear, true );

    return 0;
}
Beispiel #4
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int EDIT_TOOL::Properties( const TOOL_EVENT& aEvent )
{
    const SELECTION& selection = m_selectionTool->GetSelection();
    PCB_BASE_EDIT_FRAME* editFrame = getEditFrame<PCB_BASE_EDIT_FRAME>();

    if( !hoverSelection( selection, false ) )
        return 0;

    // Properties are displayed when there is only one item selected
    if( selection.Size() == 1 )
    {
        // Display properties dialog
        BOARD_ITEM* item = selection.Item<BOARD_ITEM>( 0 );

        std::vector<PICKED_ITEMS_LIST*>& undoList = editFrame->GetScreen()->m_UndoList.m_CommandsList;

        // Some of properties dialogs alter pointers, so we should deselect them
        m_toolMgr->RunAction( COMMON_ACTIONS::selectionClear, true );
        STATUS_FLAGS flags = item->GetFlags();
        item->ClearFlags();

        // It is necessary to determine if anything has changed
        PICKED_ITEMS_LIST* lastChange = undoList.empty() ? NULL : undoList.back();

        // Display properties dialog
        editFrame->OnEditItemRequest( NULL, item );

        PICKED_ITEMS_LIST* currentChange = undoList.empty() ? NULL : undoList.back();

        if( lastChange != currentChange )        // Something has changed
        {
            processChanges( currentChange );

            updateRatsnest( true );
            getModel<BOARD>()->GetRatsnest()->Recalculate();
            item->ViewUpdate();

            m_toolMgr->RunAction( COMMON_ACTIONS::pointEditorUpdate, true );
        }

        item->SetFlags( flags );
    }

    return 0;
}
int TOOL_EVT_UTILS::GetEventRotationAngle( const PCB_BASE_EDIT_FRAME& aFrame,
                                           const TOOL_EVENT& aEvt )
{
    wxASSERT_MSG( IsRotateToolEvt( aEvt ), "Expected rotation event" );

    const int rotAngle = aFrame.GetRotationAngle();
    const int angleMultiplier = aEvt.Parameter<intptr_t>();

    return rotAngle * angleMultiplier;
}
Beispiel #6
0
void EDIT_TOOL::processUndoBuffer( const PICKED_ITEMS_LIST* aLastChange )
{
    PCB_BASE_EDIT_FRAME* editFrame = getEditFrame<PCB_BASE_EDIT_FRAME>();
    const std::vector<PICKED_ITEMS_LIST*>& undoList = editFrame->GetScreen()->m_UndoList.m_CommandsList;
    bool process = false;

    BOOST_FOREACH( const PICKED_ITEMS_LIST* list, undoList )
    {
        if( process )
            processPickedList( list );
        else if( list == aLastChange )
            process = true;     // Start processing starting with the next undo save point
    }

    // If we could not find the requested save point in the current undo list
    // then the undo list must have been completely altered, so process everything
    if( !process )
    {
        BOOST_FOREACH( const PICKED_ITEMS_LIST* list, undoList )
        processPickedList( list );
    }
int EDIT_TOOL::editFootprintInFpEditor( const TOOL_EVENT& aEvent )
{
    const SELECTION& selection = m_selectionTool->GetSelection();
    bool unselect = selection.Empty();

    if( !hoverSelection() )
        return 0;

    MODULE* mod = uniqueSelected<MODULE>();

    if( !mod )
        return 0;

    PCB_BASE_EDIT_FRAME* editFrame = getEditFrame<PCB_BASE_EDIT_FRAME>();

    editFrame->SetCurItem( mod );

    if( editFrame->GetCurItem()->GetTimeStamp() == 0 )    // Module Editor needs a non null timestamp
    {
        editFrame->GetCurItem()->SetTimeStamp( GetNewTimeStamp() );
        editFrame->OnModify();
    }

    FOOTPRINT_EDIT_FRAME* editor = (FOOTPRINT_EDIT_FRAME*) editFrame->Kiway().Player( FRAME_PCB_MODULE_EDITOR, true );

    editor->Load_Module_From_BOARD( (MODULE*) editFrame->GetCurItem() );
    editFrame->SetCurItem( NULL );     // the current module could be deleted by

    editor->Show( true );
    editor->Raise();        // Iconize( false );

    if( unselect )
        m_toolMgr->RunAction( COMMON_ACTIONS::selectionClear, true );

    return 0;
}
Beispiel #8
0
int EDIT_TOOL::Properties( const TOOL_EVENT& aEvent )
{
    const SELECTION& selection = m_selectionTool->GetSelection();
    PCB_BASE_EDIT_FRAME* editFrame = getEditFrame<PCB_BASE_EDIT_FRAME>();

    // Shall the selection be cleared at the end?
    bool unselect = selection.Empty();

    if( !hoverSelection( selection, false ) )
        return 0;

    // Tracks & vias are treated in a special way:
    if( ( SELECTION_CONDITIONS::OnlyTypes( m_tracksViasType ) )( selection ) )
    {
        DIALOG_TRACK_VIA_PROPERTIES dlg( editFrame, selection );

        if( dlg.ShowModal() )
        {
            RN_DATA* ratsnest = getModel<BOARD>()->GetRatsnest();

            editFrame->OnModify();
            editFrame->SaveCopyInUndoList( selection.items, UR_CHANGED );
            dlg.Apply();

            selection.ForAll<KIGFX::VIEW_ITEM>( boost::bind( &KIGFX::VIEW_ITEM::ViewUpdate, _1,
                                                KIGFX::VIEW_ITEM::ALL ) );
            selection.ForAll<BOARD_ITEM>( boost::bind( &RN_DATA::Update, ratsnest, _1 ) );
            ratsnest->Recalculate();
        }
    }
    else if( selection.Size() == 1 ) // Properties are displayed when there is only one item selected
    {
        // Display properties dialog
        BOARD_ITEM* item = selection.Item<BOARD_ITEM>( 0 );

        // Store the head of the undo list to compare if anything has changed
        std::vector<PICKED_ITEMS_LIST*>& undoList = editFrame->GetScreen()->m_UndoList.m_CommandsList;

        // Some of properties dialogs alter pointers, so we should deselect them
        m_toolMgr->RunAction( COMMON_ACTIONS::selectionClear, true );
        STATUS_FLAGS flags = item->GetFlags();
        item->ClearFlags();

        // It is necessary to determine if anything has changed, so store the current undo save point
        PICKED_ITEMS_LIST* undoSavePoint = undoList.empty() ? NULL : undoList.back();

        // Display properties dialog provided by the legacy canvas frame
        editFrame->OnEditItemRequest( NULL, item );

        if( !undoList.empty() && undoList.back() != undoSavePoint )      // Undo buffer has changed
        {
            // Process changes stored after undoSavePoint
            processUndoBuffer( undoSavePoint );

            // Update the modified item
            item->ViewUpdate();
            RN_DATA* ratsnest = getModel<BOARD>()->GetRatsnest();
            ratsnest->Recalculate();

            // TODO OBSERVER! I miss you so much..
            m_toolMgr->RunAction( COMMON_ACTIONS::pointEditorUpdate, true );
        }

        item->SetFlags( flags );
    }

    if( unselect )
        m_toolMgr->RunAction( COMMON_ACTIONS::selectionClear, true );

    return 0;
}
Beispiel #9
0
int EDIT_TOOL::Main( const TOOL_EVENT& aEvent )
{
    KIGFX::VIEW_CONTROLS* controls = getViewControls();
    PCB_BASE_EDIT_FRAME* editFrame = getEditFrame<PCB_BASE_EDIT_FRAME>();

    VECTOR2I originalCursorPos = controls->GetCursorPosition();
    const SELECTION& selection = m_selectionTool->GetSelection();

    // Shall the selection be cleared at the end?
    bool unselect = selection.Empty();

    // Be sure that there is at least one item that we can modify. If nothing was selected before,
    // try looking for the stuff under mouse cursor (i.e. Kicad old-style hover selection)
    if( !hoverSelection( selection ) )
        return 0;

    Activate();

    m_dragging = false;         // Are selected items being dragged?
    bool restore = false;       // Should items' state be restored when finishing the tool?
    bool lockOverride = false;

    // By default, modified items need to update their geometry
    m_updateFlag = KIGFX::VIEW_ITEM::GEOMETRY;

    controls->ShowCursor( true );

    // cumulative translation
    wxPoint totalMovement( 0, 0 );

    GRID_HELPER grid( editFrame );
    OPT_TOOL_EVENT evt = aEvent;

    // Main loop: keep receiving events
    do
    {
        if( evt->IsCancel() )
        {
            restore = true; // Cancelling the tool means that items have to be restored
            break;          // Finish
        }

        else if( evt->Action() == TA_UNDO_REDO )
        {
            unselect = true;
            break;
        }

        else if( evt->IsAction( &COMMON_ACTIONS::editActivate )
                 || evt->IsMotion() || evt->IsDrag( BUT_LEFT ) )
        {
            BOARD_ITEM* item = selection.Item<BOARD_ITEM>( 0 );

            if( m_dragging && evt->Category() == TC_MOUSE )
            {
                m_cursor = grid.BestSnapAnchor( evt->Position(), item );
                controls->ForceCursorPosition( true, m_cursor );

                wxPoint movement = wxPoint( m_cursor.x, m_cursor.y ) - item->GetPosition();
                totalMovement += movement;

                // Drag items to the current cursor position
                for( unsigned int i = 0; i < selection.items.GetCount(); ++i )
                    selection.Item<BOARD_ITEM>( i )->Move( movement + m_offset );

                updateRatsnest( true );
            }
            else if( !m_dragging )    // Prepare to start dragging
            {
                if( !invokeInlineRouter() )
                {
                    m_selectionTool->SanitizeSelection();

                    if( selection.Empty() )
                        break;

                    // deal with locked items (override lock or abort the operation)
                    SELECTION_LOCK_FLAGS lockFlags = m_selectionTool->CheckLock();

                    if( lockFlags == SELECTION_LOCKED )
                        break;
                    else if( lockFlags == SELECTION_LOCK_OVERRIDE )
                        lockOverride = true;

                    // Save items, so changes can be undone
                    if( !isUndoInhibited() )
                    {
                        editFrame->OnModify();
                        editFrame->SaveCopyInUndoList( selection.items, UR_CHANGED );
                    }

                    m_cursor = controls->GetCursorPosition();

                    if( selection.Size() == 1 )
                    {
                        // Set the current cursor position to the first dragged item origin, so the
                        // movement vector could be computed later
                        m_cursor = grid.BestDragOrigin( originalCursorPos, item );
                        grid.SetAuxAxes( true, m_cursor );
                    }
                    else
                    {
                        m_cursor = grid.Align( m_cursor );
                    }

                    controls->ForceCursorPosition( true, m_cursor );
                    controls->WarpCursor( m_cursor, true );

                    VECTOR2I o = VECTOR2I( item->GetPosition() );
                    m_offset.x = o.x - m_cursor.x;
                    m_offset.y = o.y - m_cursor.y;

                    controls->SetAutoPan( true );
                    m_dragging = true;
                    incUndoInhibit();
                }
            }

            selection.group->ViewUpdate( KIGFX::VIEW_ITEM::GEOMETRY );
            m_toolMgr->RunAction( COMMON_ACTIONS::pointEditorUpdate, true );
        }

        // Dispatch TOOL_ACTIONs
        else if( evt->Category() == TC_COMMAND )
        {
            if( evt->IsAction( &COMMON_ACTIONS::rotate ) )
            {
                Rotate( aEvent );
            }
            else if( evt->IsAction( &COMMON_ACTIONS::flip ) )
            {
                Flip( aEvent );

                // Flip causes change of layers
                enableUpdateFlag( KIGFX::VIEW_ITEM::LAYERS );
            }
            else if( evt->IsAction( &COMMON_ACTIONS::remove ) )
            {
                Remove( aEvent );

                break;       // exit the loop, as there is no further processing for removed items
            }
            else if( evt->IsAction( &COMMON_ACTIONS::duplicate ) )
            {
                // On duplicate, stop moving this item
                // The duplicate tool should then select the new item and start
                // a new move procedure
                break;
            }
            else if( evt->IsAction( &COMMON_ACTIONS::moveExact ) )
            {
                // Can't do this, because the selection will then contain
                // stale pointers and it will all go horribly wrong...
                //editFrame->RestoreCopyFromUndoList( dummy );
                //
                // So, instead, reset the position manually
                for( unsigned int i = 0; i < selection.items.GetCount(); ++i )
                {
                    BOARD_ITEM* item = selection.Item<BOARD_ITEM>( i );
                    item->SetPosition( item->GetPosition() - totalMovement );

                    // And what about flipping and rotation?
                    // for now, they won't be undone, but maybe that is how
                    // it should be, so you can flip and move exact in the
                    // same action?
                }

                // This causes a double event, so we will get the dialogue
                // correctly, somehow - why does Rotate not?
                //MoveExact( aEvent );
                break;      // exit the loop - we move exactly, so we have finished moving
            }
        }

        else if( evt->IsMouseUp( BUT_LEFT ) || evt->IsClick( BUT_LEFT ) )
        {
            if( !lockOverride )
                break; // Finish

            lockOverride = false;
        }
    } while( evt = Wait() );

    if( m_dragging )
        decUndoInhibit();

    m_dragging = false;
    m_offset.x = 0;
    m_offset.y = 0;

    if( restore )
    {
        // Modifications have to be rollbacked, so restore the previous state of items
        wxCommandEvent dummy;
        editFrame->RestoreCopyFromUndoList( dummy );
    }
    else
    {
        // Changes are applied, so update the items
        selection.group->ItemsViewUpdate( m_updateFlag );
    }

    if( unselect )
        m_toolMgr->RunAction( COMMON_ACTIONS::selectionClear, true );

    RN_DATA* ratsnest = getModel<BOARD>()->GetRatsnest();
    ratsnest->ClearSimple();
    ratsnest->Recalculate();

    controls->ShowCursor( false );
    controls->SetAutoPan( false );

    return 0;
}
int EDIT_TOOL::Main( TOOL_EVENT& aEvent )
{
    const SELECTION& selection = m_selectionTool->GetSelection();

    // Shall the selection be cleared at the end?
    bool unselect = selection.Empty();

    // Be sure that there is at least one item that we can modify
    if( !makeSelection( selection ) )
    {
        setTransitions();

        return 0;
    }

    Activate();

    m_dragging = false;         // Are selected items being dragged?
    bool restore = false;       // Should items' state be restored when finishing the tool?

    // By default, modified items need to update their geometry
    m_updateFlag = KIGFX::VIEW_ITEM::GEOMETRY;

    KIGFX::VIEW_CONTROLS* controls = getViewControls();
    PCB_BASE_EDIT_FRAME* editFrame = getEditFrame<PCB_BASE_EDIT_FRAME>();
    controls->ShowCursor( true );
    controls->SetSnapping( true );
    controls->ForceCursorPosition( false );

    // Main loop: keep receiving events
    while( OPT_TOOL_EVENT evt = Wait() )
    {
        if( evt->IsCancel() )
        {
            restore = true; // Cancelling the tool means that items have to be restored
            break;          // Finish
        }

        else if( evt->Action() == TA_UNDO_REDO )
        {
            unselect = true;
            break;
        }

        // Dispatch TOOL_ACTIONs
        else if( evt->Category() == TC_COMMAND )
        {
            if( evt->IsAction( &COMMON_ACTIONS::rotate ) )
            {
                Rotate( aEvent );
            }
            else if( evt->IsAction( &COMMON_ACTIONS::flip ) )
            {
                Flip( aEvent );

                // Flip causes change of layers
                enableUpdateFlag( KIGFX::VIEW_ITEM::LAYERS );
            }
            else if( evt->IsAction( &COMMON_ACTIONS::remove ) )
            {
                Remove( aEvent );

                break;       // exit the loop, as there is no further processing for removed items
            }
        }

        else if( evt->IsMotion() || evt->IsDrag( BUT_LEFT ) )
        {
            m_cursor = controls->GetCursorPosition();

            if( m_dragging )
            {
                wxPoint movement = wxPoint( m_cursor.x, m_cursor.y ) -
                                   selection.Item<BOARD_ITEM>( 0 )->GetPosition();

                // Drag items to the current cursor position
                for( unsigned int i = 0; i < selection.items.GetCount(); ++i )
                    selection.Item<BOARD_ITEM>( i )->Move( movement + m_offset );

                updateRatsnest( true );
            }
            else    // Prepare to start dragging
            {
                if( m_selectionTool->CheckLock() || selection.Empty() )
                    break;

                // Save items, so changes can be undone
                editFrame->OnModify();
                editFrame->SaveCopyInUndoList( selection.items, UR_CHANGED );

                if( selection.Size() == 1 )
                {
                    // Set the current cursor position to the first dragged item origin, so the
                    // movement vector could be computed later
                    m_cursor = VECTOR2I( selection.Item<BOARD_ITEM>( 0 )->GetPosition() );
                    m_offset.x = 0;
                    m_offset.y = 0;
                }
                else
                {
                    VECTOR2D origin;

                    if( evt->IsDrag( BUT_LEFT ) )
                        origin = getView()->GetGAL()->GetGridPoint( evt->DragOrigin() );
                    else
                        origin = getViewControls()->GetCursorPosition();

                    // Update dragging offset (distance between cursor and the first dragged item)
                    m_offset = static_cast<BOARD_ITEM*>( selection.items.GetPickedItem( 0 ) )->GetPosition() -
                                                         wxPoint( origin.x, origin.y );
                }

                controls->SetAutoPan( true );
                m_dragging = true;
            }

            selection.group->ViewUpdate( KIGFX::VIEW_ITEM::GEOMETRY );
            m_toolMgr->RunAction( COMMON_ACTIONS::pointEditorUpdate, true );
        }

        else if( evt->IsMouseUp( BUT_LEFT ) || evt->IsClick( BUT_LEFT ) )
            break; // Finish
    }

    m_dragging = false;
    m_offset.x = 0;
    m_offset.y = 0;

    if( restore )
    {
        // Modifications have to be rollbacked, so restore the previous state of items
        wxCommandEvent dummy;
        editFrame->RestoreCopyFromUndoList( dummy );
    }
    else
    {
        // Changes are applied, so update the items
        selection.group->ItemsViewUpdate( m_updateFlag );
    }

    if( unselect )
        m_toolMgr->RunAction( COMMON_ACTIONS::selectionClear, true );

    RN_DATA* ratsnest = getModel<BOARD>()->GetRatsnest();
    ratsnest->ClearSimple();
    ratsnest->Recalculate();

    controls->ShowCursor( false );
    controls->SetSnapping( false );
    controls->SetAutoPan( false );

    setTransitions();

    return 0;
}
int EDIT_TOOL::Properties( TOOL_EVENT& aEvent )
{
    const SELECTION& selection = m_selectionTool->GetSelection();
    PCB_BASE_EDIT_FRAME* editFrame = getEditFrame<PCB_BASE_EDIT_FRAME>();

    if( !makeSelection( selection ) )
    {
        setTransitions();

        return 0;
    }

    // Properties are displayed when there is only one item selected
    if( selection.Size() == 1 )
    {
        // Display properties dialog
        BOARD_ITEM* item = selection.Item<BOARD_ITEM>( 0 );

        // Check if user wants to edit pad or module properties
        if( item->Type() == PCB_MODULE_T )
        {
            VECTOR2D cursor = getViewControls()->GetCursorPosition();

            for( D_PAD* pad = static_cast<MODULE*>( item )->Pads(); pad; pad = pad->Next() )
            {
                if( pad->ViewBBox().Contains( cursor ) )
                {
                    // Turns out that user wants to edit a pad properties
                    item = pad;
                    break;
                }
            }
        }

        std::vector<PICKED_ITEMS_LIST*>& undoList = editFrame->GetScreen()->m_UndoList.m_CommandsList;

        // Some of properties dialogs alter pointers, so we should deselect them
        m_toolMgr->RunAction( COMMON_ACTIONS::selectionClear, true );
        STATUS_FLAGS flags = item->GetFlags();
        item->ClearFlags();

        // It is necessary to determine if anything has changed
        PICKED_ITEMS_LIST* lastChange = undoList.empty() ? NULL : undoList.back();

        // Display properties dialog
        editFrame->OnEditItemRequest( NULL, item );

        PICKED_ITEMS_LIST* currentChange = undoList.empty() ? NULL : undoList.back();

        if( lastChange != currentChange )        // Something has changed
        {
            processChanges( currentChange );

            updateRatsnest( true );
            getModel<BOARD>()->GetRatsnest()->Recalculate();
            item->ViewUpdate();

            m_toolMgr->RunAction( COMMON_ACTIONS::pointEditorUpdate, true );
        }

        item->SetFlags( flags );
    }

    setTransitions();

    return 0;
}
int POINT_EDITOR::OnSelectionChange( const TOOL_EVENT& aEvent )
{
    const SELECTION& selection = m_selectionTool->GetSelection();

    if( selection.Size() == 1 )
    {
        Activate();

        KIGFX::VIEW_CONTROLS* controls = getViewControls();
        KIGFX::VIEW* view = getView();
        PCB_BASE_EDIT_FRAME* editFrame = getEditFrame<PCB_BASE_EDIT_FRAME>();
        EDA_ITEM* item = selection.items.GetPickedItem( 0 );

        m_editPoints = EDIT_POINTS_FACTORY::Make( item, getView()->GetGAL() );

        if( !m_editPoints )
            return 0;

        view->Add( m_editPoints.get() );
        m_editedPoint = NULL;
        bool modified = false;

        // Main loop: keep receiving events
        while( OPT_TOOL_EVENT evt = Wait() )
        {
            if( !m_editPoints ||
                evt->Matches( m_selectionTool->ClearedEvent ) ||
                evt->Matches( m_selectionTool->UnselectedEvent ) ||
                evt->Matches( m_selectionTool->SelectedEvent ) )
            {
                break;
            }

            if( evt->IsMotion() )
            {
                EDIT_POINT* point = m_editPoints->FindPoint( evt->Position() );

                if( m_editedPoint != point )
                    setEditedPoint( point );
            }

            else if( evt->IsAction( &COMMON_ACTIONS::pointEditorAddCorner ) )
            {
                addCorner( controls->GetCursorPosition() );
                updatePoints();
            }

            else if( evt->IsAction( &COMMON_ACTIONS::pointEditorRemoveCorner ) )
            {
                if( m_editedPoint )
                {
                    removeCorner( m_editedPoint );
                    updatePoints();
                }
            }

            else if( evt->IsDrag( BUT_LEFT ) && m_editedPoint )
            {
                if( !modified )
                {
                    // Save items, so changes can be undone
                    editFrame->OnModify();
                    editFrame->SaveCopyInUndoList( selection.items, UR_CHANGED );
                    controls->ForceCursorPosition( false );
                    m_original = *m_editedPoint;    // Save the original position
                    controls->SetAutoPan( true );
                    modified = true;
                }

                bool enableAltConstraint = !!evt->Modifier( MD_CTRL );
                if( enableAltConstraint != (bool) m_altConstraint )  // alternative constraint
                    setAltConstraint( enableAltConstraint );

                m_editedPoint->SetPosition( controls->GetCursorPosition() );

                if( m_altConstraint )
                    m_altConstraint->Apply();
                else
                    m_editedPoint->ApplyConstraint();

                updateItem();
                updatePoints();

                m_editPoints->ViewUpdate( KIGFX::VIEW_ITEM::GEOMETRY );
            }

            else if( evt->IsAction( &COMMON_ACTIONS::pointEditorUpdate ) )
            {
                updatePoints();
            }

            else if( evt->IsMouseUp( BUT_LEFT ) )
            {
                controls->SetAutoPan( false );
                setAltConstraint( false );
                modified = false;
                m_toolMgr->PassEvent();
            }

            else if( evt->IsCancel() )
            {
                if( modified )      // Restore the last change
                {
                    wxCommandEvent dummy;
                    editFrame->RestoreCopyFromUndoList( dummy );

                    updatePoints();
                    modified = false;
                }

                // Let the selection tool receive the event too
                m_toolMgr->PassEvent();

                break;
            }

            else
            {
                m_toolMgr->PassEvent();
            }
        }

        if( m_editPoints )
        {
            finishItem();
            item->ViewUpdate( KIGFX::VIEW_ITEM::GEOMETRY );
            view->Remove( m_editPoints.get() );
            m_editPoints.reset();
        }

        controls->ShowCursor( false );
        controls->SetAutoPan( false );
        controls->SetSnapping( false );
        controls->ForceCursorPosition( false );
    }

    return 0;
}
int EDIT_TOOL::Duplicate( const TOOL_EVENT& aEvent )
{
    // Note: original items are no more modified.

    bool increment = aEvent.IsAction( &COMMON_ACTIONS::duplicateIncrement );

    // first, check if we have a selection, or try to get one
    SELECTION_TOOL* selTool = m_toolMgr->GetTool<SELECTION_TOOL>();
    const SELECTION& selection = selTool->GetSelection();

    // Be sure that there is at least one item that we can modify
    if( !hoverSelection() )
        return 0;

    // we have a selection to work on now, so start the tool process
    PCB_BASE_EDIT_FRAME* editFrame = getEditFrame<PCB_BASE_EDIT_FRAME>();

    std::vector<BOARD_ITEM*> old_items;

    for( int i = 0; i < selection.Size(); ++i )
    {
        BOARD_ITEM* item = selection.Item<BOARD_ITEM>( i );

        if( item )
            old_items.push_back( item );
    }

    for( unsigned i = 0; i < old_items.size(); ++i )
    {
        BOARD_ITEM* item = old_items[i];

        // Unselect the item, so we won't pick it up again
        // Do this first, so a single-item duplicate will correctly call
        // SetCurItem and show the item properties
        m_toolMgr->RunAction( COMMON_ACTIONS::unselectItem, true, item );

        BOARD_ITEM* new_item = NULL;

        if( m_editModules )
            new_item = editFrame->GetBoard()->m_Modules->Duplicate( item, increment );
        else
        {
#if 0
            // @TODO: see if we allow zone duplication here
            // Duplicate zones is especially tricky (overlaping zones must be merged)
            // so zones are not duplicated
            if( item->Type() != PCB_ZONE_AREA_T )
#endif
            new_item = editFrame->GetBoard()->Duplicate( item );
        }

        if( new_item )
        {
            m_commit->Add( new_item );

            // Select the new item, so we can pick it up
            m_toolMgr->RunAction( COMMON_ACTIONS::selectItem, true, new_item );
        }
    }

    // record the new items as added
    if( !selection.Empty() )
    {
        editFrame->DisplayToolMsg( wxString::Format( _( "Duplicated %d item(s)" ),
                (int) old_items.size() ) );

        // If items were duplicated, pick them up
        // this works well for "dropping" copies around and pushes the commit
        TOOL_EVENT evt = COMMON_ACTIONS::editActivate.MakeEvent();
        Main( evt );
    }

    return 0;
};