ee_point_editor.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) 2019-2023 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 <functional>
using namespace std::placeholders;
 
#include "ee_point_editor.h"
#include <ee_grid_helper.h>
#include <tool/tool_manager.h>
#include <sch_commit.h>
#include <view/view_controls.h>
#include <gal/graphics_abstraction_layer.h>
#include <geometry/seg.h>
#include <tools/ee_actions.h>
#include <tools/ee_selection_tool.h>
#include <sch_edit_frame.h>
#include <sch_line.h>
#include <sch_bitmap.h>
#include <sch_sheet.h>
#include <sch_textbox.h>
#include <sch_table.h>
#include <sch_tablecell.h>
#include <sch_shape.h>
#include <symbol_edit_frame.h>
 
 
// Few constants to avoid using bare numbers for point indices
enum ARC_POINTS
{
 ARC_START, ARC_END, ARC_CENTER
};
 
 
enum CIRCLE_POINTS
{
 CIRC_CENTER, CIRC_END
};
 
 
enum RECTANGLE_POINTS
{
 RECT_TOPLEFT, RECT_TOPRIGHT, RECT_BOTLEFT, RECT_BOTRIGHT
};
 
 
enum RECTANGLE_LINES
{
 RECT_TOP, RECT_RIGHT, RECT_BOT, RECT_LEFT
};
 
enum TABLECELL_POINTS
{
 COL_WIDTH, ROW_HEIGHT
};
 
enum LINE_POINTS
{
 LINE_START, LINE_END
};
 
 
enum BEZIER_POINTS
{
 BEZIER_START,
 BEZIER_CTRL_PT1,
 BEZIER_CTRL_PT2,
 BEZIER_END
};
 
 
class EDIT_POINTS_FACTORY
{
public:
 static std::shared_ptr<EDIT_POINTS> Make( EDA_ITEM* aItem, SCH_BASE_FRAME* frame )
 {
 std::shared_ptr<EDIT_POINTS> points = std::make_shared<EDIT_POINTS>( aItem );
 
 if( !aItem )
 return points;
 
 // Generate list of edit points based on the item type
 switch( aItem->Type() )
 {
 case SCH_SHAPE_T:
 {
 SCH_SHAPE* shape = static_cast<SCH_SHAPE*>( aItem );
 
 switch( shape->GetShape() )
 {
 case SHAPE_T::ARC:
 points->AddPoint( shape->GetPosition() );
 points->AddPoint( shape->GetStart() );
 points->AddPoint( shape->GetEnd() );
 break;
 
 case SHAPE_T::CIRCLE:
 points->AddPoint( shape->GetPosition() );
 points->AddPoint( shape->GetEnd() );
 break;
 
 case SHAPE_T::RECTANGLE:
 {
 shape->Normalize();
 
 VECTOR2I topLeft = shape->GetPosition();
 VECTOR2I botRight = shape->GetEnd();
 
 points->AddPoint( topLeft );
 points->AddPoint( VECTOR2I( botRight.x, topLeft.y ) );
 points->AddPoint( VECTOR2I( topLeft.x, botRight.y ) );
 points->AddPoint( botRight );
 
 points->AddLine( points->Point( RECT_TOPLEFT ), points->Point( RECT_TOPRIGHT ) );
 points->Line( RECT_TOP ).SetConstraint( new EC_PERPLINE( points->Line( RECT_TOP ) ) );
 points->AddLine( points->Point( RECT_TOPRIGHT ), points->Point( RECT_BOTRIGHT ) );
 points->Line( RECT_RIGHT ).SetConstraint( new EC_PERPLINE( points->Line( RECT_RIGHT ) ) );
 points->AddLine( points->Point( RECT_BOTRIGHT ), points->Point( RECT_BOTLEFT ) );
 points->Line( RECT_BOT ).SetConstraint( new EC_PERPLINE( points->Line( RECT_BOT ) ) );
 points->AddLine( points->Point( RECT_BOTLEFT ), points->Point( RECT_TOPLEFT ) );
 points->Line( RECT_LEFT ).SetConstraint( new EC_PERPLINE( points->Line( RECT_LEFT ) ) );
 
 break;
 }
 
 case SHAPE_T::POLY:
 for( const VECTOR2I& pt : shape->GetPolyShape().Outline( 0 ).CPoints() )
 points->AddPoint( pt );
 
 break;
 
 case SHAPE_T::BEZIER:
 points->AddPoint( shape->GetStart() );
 points->AddPoint( shape->GetBezierC1() );
 points->AddPoint( shape->GetBezierC2() );
 points->AddPoint( shape->GetEnd() );
 break;
 
 default:
 UNIMPLEMENTED_FOR( shape->SHAPE_T_asString() );
 }
 
 break;
 }
 
 case SCH_RULE_AREA_T:
 {
 SCH_SHAPE* shape = static_cast<SCH_SHAPE*>( aItem );
 
 for( const VECTOR2I& pt : shape->GetPolyShape().Outline( 0 ).CPoints() )
 points->AddPoint( pt );
 
 break;
 }
 
 case SCH_TEXTBOX_T:
 {
 SCH_TEXTBOX* textbox = static_cast<SCH_TEXTBOX*>( aItem );
 
 textbox->Normalize();
 
 VECTOR2I topLeft = textbox->GetPosition();
 VECTOR2I botRight = textbox->GetEnd();
 
 points->AddPoint( topLeft );
 points->AddPoint( VECTOR2I( botRight.x, topLeft.y ) );
 points->AddPoint( VECTOR2I( topLeft.x, botRight.y ) );
 points->AddPoint( botRight );
 
 points->AddLine( points->Point( RECT_TOPLEFT ), points->Point( RECT_TOPRIGHT ) );
 points->Line( RECT_TOP ).SetConstraint( new EC_PERPLINE( points->Line( RECT_TOP ) ) );
 points->AddLine( points->Point( RECT_TOPRIGHT ), points->Point( RECT_BOTRIGHT ) );
 points->Line( RECT_RIGHT ).SetConstraint( new EC_PERPLINE( points->Line( RECT_RIGHT ) ) );
 points->AddLine( points->Point( RECT_BOTRIGHT ), points->Point( RECT_BOTLEFT ) );
 points->Line( RECT_BOT ).SetConstraint( new EC_PERPLINE( points->Line( RECT_BOT ) ) );
 points->AddLine( points->Point( RECT_BOTLEFT ), points->Point( RECT_TOPLEFT ) );
 points->Line( RECT_LEFT ).SetConstraint( new EC_PERPLINE( points->Line( RECT_LEFT ) ) );
 
 break;
 }
 
 case SCH_TABLECELL_T:
 {
 SCH_TABLECELL* cell = static_cast<SCH_TABLECELL*>( aItem );
 points->AddPoint( cell->GetEnd() - VECTOR2I( 0, cell->GetRectangleHeight() / 2 ) );
 points->AddPoint( cell->GetEnd() - VECTOR2I( cell->GetRectangleWidth() / 2, 0 ) );
 break;
 }
 
 case SCH_SHEET_T:
 {
 SCH_SHEET* sheet = (SCH_SHEET*) aItem;
 VECTOR2I topLeft = sheet->GetPosition();
 VECTOR2I botRight = sheet->GetPosition() + sheet->GetSize();
 
 points->AddPoint( topLeft );
 points->AddPoint( VECTOR2I( botRight.x, topLeft.y ) );
 points->AddPoint( VECTOR2I( topLeft.x, botRight.y ) );
 points->AddPoint( botRight );
 
 points->AddLine( points->Point( RECT_TOPLEFT ), points->Point( RECT_TOPRIGHT ) );
 points->Line( RECT_TOP ).SetConstraint( new EC_PERPLINE( points->Line( RECT_TOP ) ) );
 points->AddLine( points->Point( RECT_TOPRIGHT ), points->Point( RECT_BOTRIGHT ) );
 points->Line( RECT_RIGHT ).SetConstraint( new EC_PERPLINE( points->Line( RECT_RIGHT ) ) );
 points->AddLine( points->Point( RECT_BOTRIGHT ), points->Point( RECT_BOTLEFT ) );
 points->Line( RECT_BOT ).SetConstraint( new EC_PERPLINE( points->Line( RECT_BOT ) ) );
 points->AddLine( points->Point( RECT_BOTLEFT ), points->Point( RECT_TOPLEFT ) );
 points->Line( RECT_LEFT ).SetConstraint( new EC_PERPLINE( points->Line( RECT_LEFT ) ) );
 
 break;
 }
 
 case SCH_BITMAP_T:
 {
 SCH_BITMAP* bitmap = (SCH_BITMAP*) aItem;
 VECTOR2I topLeft = bitmap->GetPosition() - bitmap->GetSize() / 2;
 VECTOR2I botRight = bitmap->GetPosition() + bitmap->GetSize() / 2;
 
 points->AddPoint( topLeft );
 points->AddPoint( VECTOR2I( botRight.x, topLeft.y ) );
 points->AddPoint( VECTOR2I( topLeft.x, botRight.y ) );
 points->AddPoint( botRight );
 break;
 }
 
 case SCH_LINE_T:
 {
 SCH_LINE* line = (SCH_LINE*) aItem;
 std::pair<EDA_ITEM*, int> connectedStart = { nullptr, STARTPOINT };
 std::pair<EDA_ITEM*, int> connectedEnd = { nullptr, STARTPOINT };
 
 for( SCH_ITEM* test : frame->GetScreen()->Items().OfType( SCH_LINE_T ) )
 {
 if( test->GetLayer() != LAYER_NOTES )
 continue;
 
 if( test == aItem )
 continue;
 
 SCH_LINE* testLine = static_cast<SCH_LINE*>( test );
 
 if( testLine->GetStartPoint() == line->GetStartPoint() )
 {
 connectedStart = { testLine, STARTPOINT };
 }
 else if( testLine->GetEndPoint() == line->GetStartPoint() )
 {
 connectedStart = { testLine, ENDPOINT };
 }
 else if( testLine->GetStartPoint() == line->GetEndPoint() )
 {
 connectedEnd = { testLine, STARTPOINT };
 }
 else if( testLine->GetEndPoint() == line->GetEndPoint() )
 {
 connectedEnd = { testLine, ENDPOINT };
 }
 }
 
 points->AddPoint( line->GetStartPoint(), connectedStart );
 points->AddPoint( line->GetEndPoint(), connectedEnd );
 break;
 }
 
 default:
 points.reset();
 break;
 }
 
 return points;
 }
 
private:
 EDIT_POINTS_FACTORY() {};
};
 
 
EE_POINT_EDITOR::EE_POINT_EDITOR() :
 EE_TOOL_BASE<SCH_BASE_FRAME>( "eeschema.PointEditor" ),
 m_editedPoint( nullptr ),
 m_inPointEditor( false )
{
}
 
 
void EE_POINT_EDITOR::Reset( RESET_REASON aReason )
{
 EE_TOOL_BASE::Reset( aReason );
 
 m_editPoints.reset();
 m_editedPoint = nullptr;
}
 
 
bool EE_POINT_EDITOR::Init()
{
 EE_TOOL_BASE::Init();
 
 auto& menu = m_selectionTool->GetToolMenu().GetMenu();
 menu.AddItem( EE_ACTIONS::pointEditorAddCorner,
 std::bind( &EE_POINT_EDITOR::addCornerCondition, this, _1 ) );
 menu.AddItem( EE_ACTIONS::pointEditorRemoveCorner,
 std::bind( &EE_POINT_EDITOR::removeCornerCondition, this, _1 ) );
 
 return true;
}
 
 
int EE_POINT_EDITOR::clearEditedPoints( const TOOL_EVENT& aEvent )
{
 setEditedPoint( nullptr );
 
 return 0;
}
 
 
void EE_POINT_EDITOR::updateEditedPoint( const TOOL_EVENT& aEvent )
{
 EDIT_POINT* point = m_editedPoint;
 
 if( !m_editPoints )
 {
 point = nullptr;
 }
 else if( aEvent.IsMotion() )
 {
 point = m_editPoints->FindPoint( aEvent.Position(), getView() );
 }
 else if( aEvent.IsDrag( BUT_LEFT ) )
 {
 point = m_editPoints->FindPoint( aEvent.DragOrigin(), getView() );
 }
 else
 {
 point = m_editPoints->FindPoint( getViewControls()->GetCursorPosition( false ), getView() );
 }
 
 if( m_editedPoint != point )
 setEditedPoint( point );
}
 
 
int EE_POINT_EDITOR::Main( const TOOL_EVENT& aEvent )
{
 if( !m_selectionTool )
 return 0;
 
 if( m_inPointEditor )
 return 0;
 
 REENTRANCY_GUARD guard( &m_inPointEditor );
 
 if( m_isSymbolEditor )
 {
 SYMBOL_EDIT_FRAME* editor = getEditFrame<SYMBOL_EDIT_FRAME>();
 
 if( !editor->IsSymbolEditable() || editor->IsSymbolAlias() )
 return 0;
 }
 
 const EE_SELECTION& selection = m_selectionTool->GetSelection();
 
 if( selection.Size() != 1 || !selection.Front()->IsType( { SCH_SHAPE_T,
 SCH_RULE_AREA_T,
 SCH_TEXTBOX_T,
 SCH_TABLECELL_T,
 SCH_SHEET_T,
 SCH_ITEM_LOCATE_GRAPHIC_LINE_T,
 SCH_BITMAP_T } ) )
 {
 return 0;
 }
 
 // Wait till drawing tool is done
 if( selection.Front()->IsNew() )
 return 0;
 
 Activate();
 
 KIGFX::VIEW_CONTROLS* controls = getViewControls();
 EE_GRID_HELPER* grid = new EE_GRID_HELPER( m_toolMgr );
 VECTOR2I cursorPos;
 KIGFX::VIEW* view = getView();
 EDA_ITEM* item = selection.Front();
 SCH_COMMIT commit( m_toolMgr );
 
 controls->ShowCursor( true );
 
 m_editPoints = EDIT_POINTS_FACTORY::Make( item, m_frame );
 view->Add( m_editPoints.get() );
 setEditedPoint( nullptr );
 updateEditedPoint( aEvent );
 bool inDrag = false;
 
 // Main loop: keep receiving events
 while( TOOL_EVENT* evt = Wait() )
 {
 if( grid )
 {
 grid->SetSnap( !evt->Modifier( MD_SHIFT ) );
 grid->SetUseGrid( getView()->GetGAL()->GetGridSnapping()
 && !evt->DisableGridSnapping() );
 }
 else
 {
 // This check is based on the assumption that the grid object must be valid.
 // If this assumption is wrong, please fix the code above.
 wxCHECK( false, 0 );
 }
 
 if( !m_editPoints || evt->IsSelectionEvent() )
 break;
 
 if ( !inDrag )
 updateEditedPoint( *evt );
 
 if( evt->IsDrag( BUT_LEFT ) && m_editedPoint )
 {
 if( !inDrag )
 {
 commit.Modify( m_editPoints->GetParent(), m_frame->GetScreen() );
 
 if( m_editPoints->GetParent()->Type() == SCH_LINE_T )
 {
 std::pair<EDA_ITEM*, int> connected = m_editPoints->Point( LINE_START ).GetConnected();
 
 if( connected.first )
 commit.Modify( connected.first, m_frame->GetScreen() );
 
 connected = m_editPoints->Point( LINE_END ).GetConnected();
 
 if( connected.first )
 commit.Modify( connected.first, m_frame->GetScreen() );
 }
 else if( m_editPoints->GetParent()->Type() == SCH_TABLECELL_T )
 {
 SCH_TABLECELL* cell = static_cast<SCH_TABLECELL*>( m_editPoints->GetParent() );
 SCH_TABLE* table = static_cast<SCH_TABLE*>( cell->GetParent() );
 
 commit.Modify( table, m_frame->GetScreen() );
 }
 
 inDrag = true;
 }
 
 bool snap = !evt->DisableGridSnapping();
 
 cursorPos =
 grid->Align( controls->GetMousePosition(), GRID_HELPER_GRIDS::GRID_GRAPHICS );
 controls->ForceCursorPosition( true, cursorPos );
 
 m_editedPoint->SetPosition( controls->GetCursorPosition( snap ) );
 
 updateParentItem( snap );
 updatePoints();
 }
 else if( inDrag && evt->IsMouseUp( BUT_LEFT ) )
 {
 if( !commit.Empty() )
 commit.Push( _( "Move Point" ) );
 
 controls->SetAutoPan( false );
 inDrag = false;
 }
 else if( evt->IsCancelInteractive() || evt->IsActivate() )
 {
 if( inDrag ) // Restore the last change
 {
 // Currently we are manually managing the lifetime of the grid
 // helpers because there is a bug in the tool stack that adds
 // the point editor again when commit.Revert() rebuilds the selection.
 // We remove this grid here so the its destructor is called before it
 // is added again.
 if( grid )
 {
 delete grid;
 grid = nullptr;
 }
 
 commit.Revert();
 inDrag = false;
 break;
 }
 else if( evt->IsCancelInteractive() )
 {
 break;
 }
 
 if( evt->IsActivate() )
 break;
 }
 else
 {
 evt->SetPassEvent();
 }
 
 controls->SetAutoPan( inDrag );
 controls->CaptureCursor( inDrag );
 }
 
 controls->SetAutoPan( false );
 controls->CaptureCursor( false );
 setEditedPoint( nullptr );
 
 if( m_editPoints )
 {
 view->Remove( m_editPoints.get() );
 
 m_editPoints.reset();
 m_frame->GetCanvas()->Refresh();
 }
 
 delete grid;
 
 return 0;
}
 
void EE_POINT_EDITOR::pinEditedCorner( int minWidth, int minHeight, VECTOR2I& topLeft,
 VECTOR2I& topRight, VECTOR2I& botLeft, VECTOR2I& botRight,
 EE_GRID_HELPER* aGrid ) const
{
 if( isModified( m_editPoints->Point( RECT_TOPLEFT ) ) )
 {
 // pin edited point within opposite corner
 topLeft.x = std::min( topLeft.x, botRight.x - minWidth );
 topLeft.y = std::min( topLeft.y, botRight.y - minHeight );
 
 if( aGrid->GetSnap() )
 topLeft = aGrid->AlignGrid( topLeft, GRID_HELPER_GRIDS::GRID_GRAPHICS );
 
 // push edited point edges to adjacent corners
 topRight.y = topLeft.y;
 botLeft.x = topLeft.x;
 }
 else if( isModified( m_editPoints->Point( RECT_TOPRIGHT ) ) )
 {
 // pin edited point within opposite corner
 topRight.x = std::max( topRight.x, botLeft.x + minWidth );
 topRight.y = std::min( topRight.y, botLeft.y - minHeight );
 
 if( aGrid->GetSnap() )
 topRight = aGrid->AlignGrid( topRight, GRID_HELPER_GRIDS::GRID_GRAPHICS );
 
 // push edited point edges to adjacent corners
 topLeft.y = topRight.y;
 botRight.x = topRight.x;
 }
 else if( isModified( m_editPoints->Point( RECT_BOTLEFT ) ) )
 {
 // pin edited point within opposite corner
 botLeft.x = std::min( botLeft.x, topRight.x - minWidth );
 botLeft.y = std::max( botLeft.y, topRight.y + minHeight );
 
 if( aGrid->GetSnap() )
 botLeft = aGrid->AlignGrid( botLeft, GRID_HELPER_GRIDS::GRID_GRAPHICS );
 
 // push edited point edges to adjacent corners
 botRight.y = botLeft.y;
 topLeft.x = botLeft.x;
 }
 else if( isModified( m_editPoints->Point( RECT_BOTRIGHT ) ) )
 {
 // pin edited point within opposite corner
 botRight.x = std::max( botRight.x, topLeft.x + minWidth );
 botRight.y = std::max( botRight.y, topLeft.y + minHeight );
 
 if( aGrid->GetSnap() )
 botRight = aGrid->AlignGrid( botRight, GRID_HELPER_GRIDS::GRID_GRAPHICS );
 
 // push edited point edges to adjacent corners
 botLeft.y = botRight.y;
 topRight.x = botRight.x;
 }
 else if( isModified( m_editPoints->Line( RECT_TOP ) ) )
 {
 topLeft.y = std::min( topLeft.y, botRight.y - minHeight );
 
 if( aGrid->GetSnap() )
 topLeft = aGrid->AlignGrid( topLeft, GRID_HELPER_GRIDS::GRID_GRAPHICS );
 }
 else if( isModified( m_editPoints->Line( RECT_LEFT ) ) )
 {
 topLeft.x = std::min( topLeft.x, botRight.x - minWidth );
 
 if( aGrid->GetSnap() )
 topLeft = aGrid->AlignGrid( topLeft, GRID_HELPER_GRIDS::GRID_GRAPHICS );
 }
 else if( isModified( m_editPoints->Line( RECT_BOT ) ) )
 {
 botRight.y = std::max( botRight.y, topLeft.y + minHeight );
 
 if( aGrid->GetSnap() )
 botRight = aGrid->AlignGrid( botRight, GRID_HELPER_GRIDS::GRID_GRAPHICS );
 }
 else if( isModified( m_editPoints->Line( RECT_RIGHT ) ) )
 {
 botRight.x = std::max( botRight.x, topLeft.x + minWidth );
 
 if( aGrid->GetSnap() )
 botRight = aGrid->AlignGrid( botRight, GRID_HELPER_GRIDS::GRID_GRAPHICS );
 }
}
 
 
void EE_POINT_EDITOR::updateParentItem( bool aSnapToGrid ) const
{
 EDA_ITEM* item = m_editPoints->GetParent();
 
 if( !item )
 return;
 
 switch( item->Type() )
 {
 case SCH_RULE_AREA_T:
 case SCH_SHAPE_T:
 {
 SCH_SHAPE* shape = static_cast<SCH_SHAPE*>( item );
 
 switch( shape->GetShape() )
 {
 case SHAPE_T::ARC:
 if( getEditedPointIndex() == ARC_CENTER )
 {
 shape->SetEditState( 4 );
 shape->CalcEdit( m_editPoints->Point( ARC_CENTER ).GetPosition() );
 }
 else if( getEditedPointIndex() == ARC_START )
 {
 shape->SetEditState( 2 );
 shape->CalcEdit( m_editPoints->Point( ARC_START ).GetPosition() );
 }
 else if( getEditedPointIndex() == ARC_END )
 {
 shape->SetEditState( 3 );
 shape->CalcEdit( m_editPoints->Point( ARC_END ).GetPosition() );
 }
 break;
 
 case SHAPE_T::CIRCLE:
 shape->SetPosition( m_editPoints->Point( CIRC_CENTER ).GetPosition() );
 shape->SetEnd( m_editPoints->Point( CIRC_END ).GetPosition() );
 break;
 
 case SHAPE_T::POLY:
 shape->GetPolyShape().RemoveAllContours();
 shape->GetPolyShape().NewOutline();
 
 for( unsigned i = 0; i < m_editPoints->PointsSize(); ++i )
 {
 VECTOR2I pt = m_editPoints->Point( i ).GetPosition();
 shape->GetPolyShape().Append( pt.x, pt.y, -1, -1, true );
 }
 
 break;
 
 case SHAPE_T::RECTANGLE:
 {
 EE_GRID_HELPER gridHelper( m_toolMgr );
 VECTOR2I topLeft = m_editPoints->Point( RECT_TOPLEFT ).GetPosition();
 VECTOR2I topRight = m_editPoints->Point( RECT_TOPRIGHT ).GetPosition();
 VECTOR2I botLeft = m_editPoints->Point( RECT_BOTLEFT ).GetPosition();
 VECTOR2I botRight = m_editPoints->Point( RECT_BOTRIGHT ).GetPosition();
 
 gridHelper.SetSnap( aSnapToGrid );
 
 pinEditedCorner( schIUScale.MilsToIU( 1 ), schIUScale.MilsToIU( 1 ), topLeft, topRight,
 botLeft, botRight, &gridHelper );
 
 if( isModified( m_editPoints->Point( RECT_TOPLEFT ) )
 || isModified( m_editPoints->Point( RECT_TOPRIGHT ) )
 || isModified( m_editPoints->Point( RECT_BOTRIGHT ) )
 || isModified( m_editPoints->Point( RECT_BOTLEFT ) ) )
 {
 shape->SetPosition( topLeft );
 shape->SetEnd( botRight );
 }
 else if( isModified( m_editPoints->Line( RECT_TOP ) ) )
 {
 shape->SetStartY( topLeft.y );
 }
 else if( isModified( m_editPoints->Line( RECT_LEFT ) ) )
 {
 shape->SetStartX( topLeft.x );
 }
 else if( isModified( m_editPoints->Line( RECT_BOT ) ) )
 {
 shape->SetEndY( botRight.y );
 }
 else if( isModified( m_editPoints->Line( RECT_RIGHT ) ) )
 {
 shape->SetEndX( botRight.x );
 }
 
 for( unsigned i = 0; i < m_editPoints->LinesSize(); ++i )
 {
 if( !isModified( m_editPoints->Line( i ) ) )
 {
 m_editPoints->Line( i ).SetConstraint(
 new EC_PERPLINE( m_editPoints->Line( i ) ) );
 }
 }
 
 break;
 }
 
 case SHAPE_T::BEZIER:
 shape->SetStart( m_editPoints->Point( BEZIER_START ).GetPosition() );
 shape->SetBezierC1( m_editPoints->Point( BEZIER_CTRL_PT1 ).GetPosition() );
 shape->SetBezierC2( m_editPoints->Point( BEZIER_CTRL_PT2 ).GetPosition() );
 shape->SetEnd( m_editPoints->Point( BEZIER_END ).GetPosition() );
 
 shape->RebuildBezierToSegmentsPointsList( shape->GetWidth() );
 break;
 
 default:
 UNIMPLEMENTED_FOR( shape->SHAPE_T_asString() );
 }
 
 break;
 }
 
 case SCH_TEXTBOX_T:
 {
 SCH_TEXTBOX* textbox = static_cast<SCH_TEXTBOX*>( item );
 EE_GRID_HELPER gridHelper( m_toolMgr );
 VECTOR2I topLeft = m_editPoints->Point( RECT_TOPLEFT ).GetPosition();
 VECTOR2I topRight = m_editPoints->Point( RECT_TOPRIGHT ).GetPosition();
 VECTOR2I botLeft = m_editPoints->Point( RECT_BOTLEFT ).GetPosition();
 VECTOR2I botRight = m_editPoints->Point( RECT_BOTRIGHT ).GetPosition();
 
 gridHelper.SetSnap( aSnapToGrid );
 
 pinEditedCorner( schIUScale.MilsToIU( 1 ), schIUScale.MilsToIU( 1 ), topLeft, topRight,
 botLeft, botRight, &gridHelper );
 
 if( isModified( m_editPoints->Point( RECT_TOPLEFT ) )
 || isModified( m_editPoints->Point( RECT_TOPRIGHT ) )
 || isModified( m_editPoints->Point( RECT_BOTRIGHT ) )
 || isModified( m_editPoints->Point( RECT_BOTLEFT ) ) )
 {
 textbox->SetPosition( topLeft );
 textbox->SetEnd( botRight );
 }
 else if( isModified( m_editPoints->Line( RECT_TOP ) ) )
 {
 textbox->SetStartY( topLeft.y );
 }
 else if( isModified( m_editPoints->Line( RECT_LEFT ) ) )
 {
 textbox->SetStartX( topLeft.x );
 }
 else if( isModified( m_editPoints->Line( RECT_BOT ) ) )
 {
 textbox->SetEndY( botRight.y );
 }
 else if( isModified( m_editPoints->Line( RECT_RIGHT ) ) )
 {
 textbox->SetEndX( botRight.x );
 }
 
 for( unsigned i = 0; i < m_editPoints->LinesSize(); ++i )
 {
 if( !isModified( m_editPoints->Line( i ) ) )
 {
 m_editPoints->Line( i ).SetConstraint(
 new EC_PERPLINE( m_editPoints->Line( i ) ) );
 }
 }
 
 textbox->ClearRenderCache();
 break;
 }
 
 case SCH_TABLECELL_T:
 {
 SCH_TABLECELL* cell = static_cast<SCH_TABLECELL*>( item );
 SCH_TABLE* table = static_cast<SCH_TABLE*>( cell->GetParent() );
 
 if( isModified( m_editPoints->Point( COL_WIDTH ) ) )
 {
 cell->SetEnd( VECTOR2I( m_editPoints->Point( 0 ).GetX(), cell->GetEndY() ) );
 
 int colWidth = cell->GetRectangleWidth();
 
 for( int ii = 0; ii < cell->GetColSpan() - 1; ++ii )
 colWidth -= table->GetColWidth( cell->GetColumn() + ii );
 
 table->SetColWidth( cell->GetColumn() + cell->GetColSpan() - 1, colWidth );
 table->Normalize();
 }
 else if( isModified( m_editPoints->Point( ROW_HEIGHT ) ) )
 {
 cell->SetEnd( VECTOR2I( cell->GetEndX(), m_editPoints->Point( 1 ).GetY() ) );
 
 int rowHeight = cell->GetRectangleHeight();
 
 for( int ii = 0; ii < cell->GetRowSpan() - 1; ++ii )
 rowHeight -= table->GetRowHeight( cell->GetRow() + ii );
 
 table->SetRowHeight( cell->GetRow() + cell->GetRowSpan() - 1, rowHeight );
 table->Normalize();
 }
 
 break;
 }
 
 case SCH_BITMAP_T:
 {
 EE_GRID_HELPER gridHelper( m_toolMgr );
 SCH_BITMAP* bitmap = (SCH_BITMAP*) item;
 VECTOR2I topLeft = m_editPoints->Point( RECT_TOPLEFT ).GetPosition();
 VECTOR2I topRight = m_editPoints->Point( RECT_TOPRIGHT ).GetPosition();
 VECTOR2I botLeft = m_editPoints->Point( RECT_BOTLEFT ).GetPosition();
 VECTOR2I botRight = m_editPoints->Point( RECT_BOTRIGHT ).GetPosition();
 
 gridHelper.SetSnap( aSnapToGrid );
 
 pinEditedCorner( schIUScale.MilsToIU( 50 ), schIUScale.MilsToIU( 50 ), topLeft, topRight,
 botLeft, botRight, &gridHelper );
 
 double oldWidth = bitmap->GetSize().x;
 double newWidth = topRight.x - topLeft.x;
 double widthRatio = newWidth / oldWidth;
 
 double oldHeight = bitmap->GetSize().y;
 double newHeight = botLeft.y - topLeft.y;
 double heightRatio = newHeight / oldHeight;
 
 bitmap->SetImageScale( bitmap->GetImageScale() * std::min( widthRatio, heightRatio ) );
 break;
 }
 
 case SCH_SHEET_T:
 {
 SCH_SHEET* sheet = (SCH_SHEET*) item;
 EE_GRID_HELPER gridHelper( m_toolMgr );
 VECTOR2I topLeft = m_editPoints->Point( RECT_TOPLEFT ).GetPosition();
 VECTOR2I topRight = m_editPoints->Point( RECT_TOPRIGHT ).GetPosition();
 VECTOR2I botLeft = m_editPoints->Point( RECT_BOTLEFT ).GetPosition();
 VECTOR2I botRight = m_editPoints->Point( RECT_BOTRIGHT ).GetPosition();
 VECTOR2I sheetNewPos = sheet->GetPosition();
 VECTOR2I sheetNewSize = sheet->GetSize();
 
 gridHelper.SetSnap( aSnapToGrid );
 
 int edited = getEditedPointIndex();
 
 if( isModified( m_editPoints->Line( RECT_RIGHT ) ) )
 edited = RECT_TOPRIGHT;
 else if( isModified( m_editPoints->Line( RECT_BOT ) ) )
 edited = RECT_BOTLEFT;
 
 gridHelper.SetSnap( aSnapToGrid );
 
 pinEditedCorner( sheet->GetMinWidth( edited == RECT_TOPRIGHT || edited == RECT_BOTRIGHT ),
 sheet->GetMinHeight( edited == RECT_BOTLEFT || edited == RECT_BOTRIGHT ),
 topLeft, topRight, botLeft, botRight, &gridHelper );
 
 if( isModified( m_editPoints->Point( RECT_TOPLEFT ) )
 || isModified( m_editPoints->Point( RECT_TOPRIGHT ) )
 || isModified( m_editPoints->Point( RECT_BOTRIGHT ) )
 || isModified( m_editPoints->Point( RECT_BOTLEFT ) ) )
 {
 sheetNewPos = topLeft;
 sheetNewSize = VECTOR2I( botRight.x - topLeft.x, botRight.y - topLeft.y );
 }
 else if( isModified( m_editPoints->Line( RECT_TOP ) ) )
 {
 sheetNewPos = VECTOR2I( sheet->GetPosition().x, topLeft.y );
 sheetNewSize = VECTOR2I( sheet->GetSize().x, botRight.y - topLeft.y );
 }
 else if( isModified( m_editPoints->Line( RECT_LEFT ) ) )
 {
 sheetNewPos = VECTOR2I( topLeft.x, sheet->GetPosition().y );
 sheetNewSize = VECTOR2I( botRight.x - topLeft.x, sheet->GetSize().y );
 }
 else if( isModified( m_editPoints->Line( RECT_BOT ) ) )
 {
 sheetNewSize = VECTOR2I( sheet->GetSize().x, botRight.y - topLeft.y );
 }
 else if( isModified( m_editPoints->Line( RECT_RIGHT ) ) )
 {
 sheetNewSize = VECTOR2I( botRight.x - topLeft.x, sheet->GetSize().y );
 }
 
 for( unsigned i = 0; i < m_editPoints->LinesSize(); ++i )
 {
 if( !isModified( m_editPoints->Line( i ) ) )
 {
 m_editPoints->Line( i ).SetConstraint(
 new EC_PERPLINE( m_editPoints->Line( i ) ) );
 }
 }
 
 if( sheet->GetPosition() != sheetNewPos )
 sheet->SetPositionIgnoringPins( sheetNewPos );
 
 if( sheet->GetSize() != sheetNewSize )
 sheet->Resize( sheetNewSize );
 
 break;
 }
 
 case SCH_LINE_T:
 {
 SCH_LINE* line = (SCH_LINE*) item;
 
 line->SetStartPoint( m_editPoints->Point( LINE_START ).GetPosition() );
 line->SetEndPoint( m_editPoints->Point( LINE_END ).GetPosition() );
 
 std::pair<EDA_ITEM*, int> connected = m_editPoints->Point( LINE_START ).GetConnected();
 
 if( connected.first )
 {
 if( connected.second == STARTPOINT )
 static_cast<SCH_LINE*>( connected.first )->SetStartPoint( line->GetStartPoint() );
 else if( connected.second == ENDPOINT )
 static_cast<SCH_LINE*>( connected.first )->SetEndPoint( line->GetStartPoint() );
 
 updateItem( connected.first, true );
 }
 
 connected = m_editPoints->Point( LINE_END ).GetConnected();
 
 if( connected.first )
 {
 if( connected.second == STARTPOINT )
 static_cast<SCH_LINE*>( connected.first )->SetStartPoint( line->GetEndPoint() );
 else if( connected.second == ENDPOINT )
 static_cast<SCH_LINE*>( connected.first )->SetEndPoint( line->GetEndPoint() );
 
 updateItem( connected.first, true );
 }
 
 break;
 }
 
 default:
 break;
 }
 
 updateItem( item, true );
 m_frame->SetMsgPanel( item );
}
 
 
void EE_POINT_EDITOR::updatePoints()
{
 if( !m_editPoints )
 return;
 
 EDA_ITEM* item = m_editPoints->GetParent();
 
 if( !item )
 return;
 
 switch( item->Type() )
 {
 case SCH_RULE_AREA_T:
 case SCH_SHAPE_T:
 {
 SCH_SHAPE* shape = static_cast<SCH_SHAPE*>( item );
 
 switch( shape->GetShape() )
 {
 case SHAPE_T::ARC:
 m_editPoints->Point( ARC_CENTER ).SetPosition( shape->GetPosition() );
 m_editPoints->Point( ARC_START ).SetPosition( shape->GetStart() );
 m_editPoints->Point( ARC_END ).SetPosition( shape->GetEnd() );
 break;
 
 case SHAPE_T::CIRCLE:
 m_editPoints->Point( CIRC_CENTER ).SetPosition( shape->GetPosition() );
 m_editPoints->Point( CIRC_END ).SetPosition( shape->GetEnd() );
 break;
 
 case SHAPE_T::POLY:
 {
 if( (int) m_editPoints->PointsSize() != shape->GetPointCount() )
 {
 getView()->Remove( m_editPoints.get() );
 m_editedPoint = nullptr;
 m_editPoints = EDIT_POINTS_FACTORY::Make( item, m_frame );
 getView()->Add( m_editPoints.get() );
 }
 else
 {
 int ii = 0;
 
 for( const VECTOR2I& pt : shape->GetPolyShape().Outline( 0 ).CPoints() )
 m_editPoints->Point( ii++ ).SetPosition( pt );
 }
 
 break;
 }
 
 case SHAPE_T::RECTANGLE:
 {
 // point editor works only with rectangles having width and height > 0
 // Some symbols can have rectangles with width or height < 0
 // So normalize the size:
 BOX2I dummy;
 dummy.SetOrigin( shape->GetPosition() );
 dummy.SetEnd( shape->GetEnd() );
 dummy.Normalize();
 VECTOR2I topLeft = dummy.GetPosition();
 VECTOR2I botRight = dummy.GetEnd();
 
 m_editPoints->Point( RECT_TOPLEFT ).SetPosition( topLeft );
 m_editPoints->Point( RECT_TOPRIGHT ).SetPosition( VECTOR2I( botRight.x, topLeft.y ) );
 m_editPoints->Point( RECT_BOTLEFT ).SetPosition( VECTOR2I( topLeft.x, botRight.y ) );
 m_editPoints->Point( RECT_BOTRIGHT ).SetPosition( botRight );
 break;
 }
 
 case SHAPE_T::BEZIER:
 m_editPoints->Point( BEZIER_START ).SetPosition( shape->GetStart() );
 m_editPoints->Point( BEZIER_CTRL_PT1 ).SetPosition( shape->GetBezierC1() );
 m_editPoints->Point( BEZIER_CTRL_PT2 ).SetPosition( shape->GetBezierC2() );
 m_editPoints->Point( BEZIER_END ).SetPosition( shape->GetEnd() );
 break;
 
 default:
 UNIMPLEMENTED_FOR( shape->SHAPE_T_asString() );
 }
 
 break;
 }
 
 case SCH_TEXTBOX_T:
 {
 SCH_TEXTBOX* textbox = static_cast<SCH_TEXTBOX*>( item );
 
 // point editor works only with rectangles having width and height > 0
 // Some symbols can have rectangles with width or height < 0
 // So normalize the size:
 BOX2I dummy;
 dummy.SetOrigin( textbox->GetPosition() );
 dummy.SetEnd( textbox->GetEnd() );
 dummy.Normalize();
 VECTOR2I topLeft = dummy.GetPosition();
 VECTOR2I botRight = dummy.GetEnd();
 
 m_editPoints->Point( RECT_TOPLEFT ).SetPosition( topLeft );
 m_editPoints->Point( RECT_TOPRIGHT ).SetPosition( VECTOR2I( botRight.x, topLeft.y ) );
 m_editPoints->Point( RECT_BOTLEFT ).SetPosition( VECTOR2I( topLeft.x, botRight.y ) );
 m_editPoints->Point( RECT_BOTRIGHT ).SetPosition( botRight );
 break;
 }
 
 case SCH_TABLECELL_T:
 {
 SCH_TABLECELL* cell = static_cast<SCH_TABLECELL*>( item );
 
 m_editPoints->Point( 0 ).SetPosition( cell->GetEndX(),
 cell->GetEndY() - cell->GetRectangleHeight() / 2 );
 m_editPoints->Point( 1 ).SetPosition( cell->GetEndX() - cell->GetRectangleWidth() / 2,
 cell->GetEndY() );
 break;
 }
 
 case SCH_BITMAP_T:
 {
 SCH_BITMAP* bitmap = (SCH_BITMAP*) item;
 VECTOR2I topLeft = bitmap->GetPosition() - bitmap->GetSize() / 2;
 VECTOR2I botRight = bitmap->GetPosition() + bitmap->GetSize() / 2;
 
 m_editPoints->Point( RECT_TOPLEFT ).SetPosition( topLeft );
 m_editPoints->Point( RECT_TOPRIGHT ).SetPosition( botRight.x, topLeft.y );
 m_editPoints->Point( RECT_BOTLEFT ).SetPosition( topLeft.x, botRight.y );
 m_editPoints->Point( RECT_BOTRIGHT ).SetPosition( botRight );
 break;
 }
 
 case SCH_SHEET_T:
 {
 SCH_SHEET* sheet = (SCH_SHEET*) item;
 VECTOR2I topLeft = sheet->GetPosition();
 VECTOR2I botRight = sheet->GetPosition() + sheet->GetSize();
 
 m_editPoints->Point( RECT_TOPLEFT ).SetPosition( topLeft );
 m_editPoints->Point( RECT_TOPRIGHT ).SetPosition( botRight.x, topLeft.y );
 m_editPoints->Point( RECT_BOTLEFT ).SetPosition( topLeft.x, botRight.y );
 m_editPoints->Point( RECT_BOTRIGHT ).SetPosition( botRight );
 break;
 }
 
 case SCH_LINE_T:
 {
 SCH_LINE* line = (SCH_LINE*) item;
 
 m_editPoints->Point( LINE_START ).SetPosition( line->GetStartPoint() );
 m_editPoints->Point( LINE_END ).SetPosition( line->GetEndPoint() );
 break;
 }
 
 default:
 break;
 }
 
 getView()->Update( m_editPoints.get() );
}
 
 
void EE_POINT_EDITOR::setEditedPoint( EDIT_POINT* aPoint )
{
 KIGFX::VIEW_CONTROLS* controls = getViewControls();
 
 if( aPoint )
 {
 m_frame->GetCanvas()->SetCurrentCursor( KICURSOR::ARROW );
 controls->ForceCursorPosition( true, aPoint->GetPosition() );
 controls->ShowCursor( true );
 }
 else
 {
 if( m_frame->ToolStackIsEmpty() )
 controls->ShowCursor( false );
 
 controls->ForceCursorPosition( false );
 }
 
 m_editedPoint = aPoint;
}
 
 
bool EE_POINT_EDITOR::removeCornerCondition( const SELECTION& )
{
 bool isRuleArea = false;
 
 if( m_editPoints )
 isRuleArea = m_editPoints->GetParent()->Type() == SCH_RULE_AREA_T;
 
 if( !m_editPoints || !m_editedPoint
 || !( m_editPoints->GetParent()->Type() == SCH_SHAPE_T || isRuleArea ) )
 {
 return false;
 }
 
 SCH_SHAPE* shape = static_cast<SCH_SHAPE*>( m_editPoints->GetParent() );
 
 if( shape->GetPolyShape().IsEmpty() )
 return false;
 
 SHAPE_LINE_CHAIN& poly = shape->GetPolyShape().Outline( 0 );
 
 if( poly.GetPointCount() < 3 )
 return false;
 
 for( const VECTOR2I& pt : poly.CPoints() )
 {
 if( pt == m_editedPoint->GetPosition() )
 return true;
 }
 
 return false;
}
 
 
bool EE_POINT_EDITOR::addCornerCondition( const SELECTION& )
{
 if( !m_editPoints
 || !( m_editPoints->GetParent()->Type() == SCH_SHAPE_T
 || m_editPoints->GetParent()->Type() == SCH_RULE_AREA_T ) )
 {
 return false;
 }
 
 SCH_SHAPE* shape = static_cast<SCH_SHAPE*>( m_editPoints->GetParent() );
 
 if( shape->GetShape() != SHAPE_T::POLY )
 return false;
 
 VECTOR2I cursorPos = getViewControls()->GetCursorPosition( false );
 double threshold = getView()->ToWorld( EDIT_POINT::POINT_SIZE );
 
 return shape->HitTest( cursorPos, (int) threshold );
}
 
 
int EE_POINT_EDITOR::addCorner( const TOOL_EVENT& aEvent )
{
 if( !m_editPoints
 || !( m_editPoints->GetParent()->Type() == SCH_SHAPE_T
 || m_editPoints->GetParent()->Type() == SCH_RULE_AREA_T ) )
 return 0;
 
 SCH_SHAPE* shape = static_cast<SCH_SHAPE*>( m_editPoints->GetParent() );
 SHAPE_LINE_CHAIN& poly = shape->GetPolyShape().Outline( 0 );
 SCH_COMMIT commit( m_toolMgr );
 
 commit.Modify( shape, m_frame->GetScreen() );
 
 VECTOR2I cursor = getViewControls()->GetCursorPosition( !aEvent.DisableGridSnapping() );
 int currentMinDistance = INT_MAX;
 int closestLineStart = 0;
 unsigned numPoints = poly.GetPointCount();
 
 if( !shape->IsClosed() )
 numPoints -= 1;
 
 for( unsigned i = 0; i < numPoints; ++i )
 {
 int distance = (int) DistanceLinePoint( poly.CPoint( i ),
 poly.CPoint( i + 1 ), cursor );
 
 if( distance < currentMinDistance )
 {
 currentMinDistance = distance;
 closestLineStart = i;
 }
 }
 
 poly.Insert( closestLineStart + 1, cursor );
 
 updateItem( shape, true );
 updatePoints();
 
 commit.Push( _( "Add Corner" ) );
 return 0;
}
 
 
int EE_POINT_EDITOR::removeCorner( const TOOL_EVENT& aEvent )
{
 if( !m_editPoints || !m_editedPoint
 || !( m_editPoints->GetParent()->Type() == SCH_SHAPE_T
 || m_editPoints->GetParent()->Type() == SCH_RULE_AREA_T ) )
 {
 return 0;
 }
 
 SCH_SHAPE* shape = static_cast<SCH_SHAPE*>( m_editPoints->GetParent() );
 SHAPE_LINE_CHAIN& poly = shape->GetPolyShape().Outline( 0 );
 SCH_COMMIT commit( m_toolMgr );
 
 if( poly.GetPointCount() <= 3 )
 return 0;
 
 commit.Modify( shape, m_frame->GetScreen() );
 
 poly.Remove( getEditedPointIndex() );
 setEditedPoint( nullptr );
 
 updateItem( shape, true );
 updatePoints();
 
 commit.Push( _( "Remove Corner" ) );
 return 0;
}
 
 
int EE_POINT_EDITOR::modifiedSelection( const TOOL_EVENT& aEvent )
{
 updatePoints();
 return 0;
}
 
 
void EE_POINT_EDITOR::setTransitions()
{
 Go( &EE_POINT_EDITOR::Main, EVENTS::PointSelectedEvent );
 Go( &EE_POINT_EDITOR::Main, EVENTS::SelectedEvent );
 Go( &EE_POINT_EDITOR::Main, ACTIONS::activatePointEditor.MakeEvent() );
 Go( &EE_POINT_EDITOR::addCorner, EE_ACTIONS::pointEditorAddCorner.MakeEvent() );
 Go( &EE_POINT_EDITOR::removeCorner, EE_ACTIONS::pointEditorRemoveCorner.MakeEvent() );
 Go( &EE_POINT_EDITOR::modifiedSelection, EVENTS::SelectedItemsModified );
 Go( &EE_POINT_EDITOR::clearEditedPoints, EVENTS::ClearedEvent );
}