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kicad/pcbnew/tools/point_editor.cpp

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/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2013 CERN
* @author Maciej Suminski <maciej.suminski@cern.ch>
*
* 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 <boost/make_shared.hpp>
#include <tool/tool_manager.h>
#include <view/view_controls.h>
#include <gal/graphics_abstraction_layer.h>
#include <geometry/seg.h>
#include <confirm.h>
#include "common_actions.h"
#include "selection_tool.h"
#include "point_editor.h"
#include <wxPcbStruct.h>
#include <class_drawsegment.h>
#include <class_dimension.h>
#include <class_zone.h>
#include <class_board.h>
/**
* Class POINT_EDITOR
*
* Tool that displays edit points allowing to modify items by dragging the points.
*/
class EDIT_POINTS_FACTORY
{
public:
static boost::shared_ptr<EDIT_POINTS> Make( EDA_ITEM* aItem )
{
boost::shared_ptr<EDIT_POINTS> points = boost::make_shared<EDIT_POINTS>( aItem );
// Generate list of edit points basing on the item type
switch( aItem->Type() )
{
case PCB_LINE_T:
{
const DRAWSEGMENT* segment = static_cast<const DRAWSEGMENT*>( aItem );
switch( segment->GetShape() )
{
case S_SEGMENT:
points->AddPoint( segment->GetStart() ); // points[0]
points->AddPoint( segment->GetEnd() ); // points[1]
break;
case S_ARC:
points->AddPoint( segment->GetCenter() ); // points[0]
points->AddPoint( segment->GetArcStart() ); // points[1]
points->AddPoint( segment->GetArcEnd() ); // points[2]
// Set constraints
// Arc end has to stay at the same radius as the start
(*points)[2].SetConstraint( new EC_CIRCLE( (*points)[2], (*points)[0], (*points)[1] ) );
break;
case S_CIRCLE:
points->AddPoint( segment->GetCenter() ); // points[0]
points->AddPoint( segment->GetEnd() ); // points[1]
break;
default: // suppress warnings
break;
}
break;
}
case PCB_ZONE_AREA_T:
{
const CPolyLine* outline = static_cast<const ZONE_CONTAINER*>( aItem )->Outline();
int cornersCount = outline->GetCornersCount();
for( int i = 0; i < cornersCount; ++i )
points->AddPoint( outline->GetPos( i ) );
// Lines have to be added after creating edit points, so they use EDIT_POINT references
for( int i = 0; i < cornersCount - 1; ++i )
points->AddLine( (*points)[i], (*points)[i + 1] );
// The last missing line, connecting the last and the first polygon point
points->AddLine( (*points)[cornersCount - 1], (*points)[0] );
break;
}
case PCB_DIMENSION_T:
{
const DIMENSION* dimension = static_cast<const DIMENSION*>( aItem );
points->AddPoint( dimension->m_crossBarO );
points->AddPoint( dimension->m_crossBarF );
points->AddPoint( dimension->m_featureLineGO );
points->AddPoint( dimension->m_featureLineDO );
// Dimension height setting - edit points should move only along the feature lines
(*points)[0].SetConstraint( new EC_LINE( (*points)[0], (*points)[2] ) );
(*points)[1].SetConstraint( new EC_LINE( (*points)[1], (*points)[3] ) );
break;
}
default:
points.reset();
break;
}
return points;
}
private:
EDIT_POINTS_FACTORY() {};
};
POINT_EDITOR::POINT_EDITOR() :
TOOL_INTERACTIVE( "pcbnew.PointEditor" ), m_selectionTool( NULL ), m_dragPoint( NULL ),
m_original( VECTOR2I( 0, 0 ) ), m_altConstrainer( VECTOR2I( 0, 0 ) )
{
}
void POINT_EDITOR::Reset( RESET_REASON aReason )
{
m_editPoints.reset();
m_altConstraint.reset();
}
bool POINT_EDITOR::Init()
{
// Find the selection tool, so they can cooperate
m_selectionTool = static_cast<SELECTION_TOOL*>( m_toolMgr->FindTool( "pcbnew.InteractiveSelection" ) );
if( !m_selectionTool )
{
DisplayError( NULL, wxT( "pcbnew.InteractiveSelection tool is not available" ) );
return false;
}
setTransitions();
return true;
}
int POINT_EDITOR::OnSelectionChange( TOOL_EVENT& aEvent )
{
const SELECTION_TOOL::SELECTION& selection = m_selectionTool->GetSelection();
if( selection.Size() == 1 )
{
Activate();
KIGFX::VIEW_CONTROLS* controls = getViewControls();
KIGFX::VIEW* view = getView();
PCB_EDIT_FRAME* editFrame = getEditFrame<PCB_EDIT_FRAME>();
EDA_ITEM* item = selection.items.GetPickedItem( 0 );
m_editPoints = EDIT_POINTS_FACTORY::Make( item );
if( !m_editPoints )
{
setTransitions();
return 0;
}
view->Add( m_editPoints.get() );
m_dragPoint = 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->DeselectedEvent ) ||
evt->Matches( m_selectionTool->SelectedEvent ) )
{
break;
}
if( evt->IsMotion() )
{
EDIT_POINT* point = m_editPoints->FindPoint( evt->Position() );
if( m_dragPoint != point )
{
if( point )
{
controls->ShowCursor( true );
controls->SetAutoPan( true );
controls->SetSnapping( true );
controls->ForceCursorPosition( true, point->GetPosition() );
}
else
{
controls->ShowCursor( false );
controls->SetAutoPan( false );
controls->SetSnapping( false );
controls->ForceCursorPosition( false );
}
}
m_dragPoint = point;
}
else if( evt->IsDblClick( BUT_LEFT ) )
{
breakOutline( controls->GetCursorPosition() );
}
else if( evt->IsDrag( BUT_LEFT ) && m_dragPoint )
{
if( !modified )
{
// Save items, so changes can be undone
editFrame->OnModify();
editFrame->SaveCopyInUndoList( selection.items, UR_CHANGED );
controls->ForceCursorPosition( false );
m_original = *m_dragPoint; // Save the original position
modified = true;
}
bool enableAltConstraint = !!evt->Modifier( MD_CTRL );
if( enableAltConstraint != (bool) m_altConstraint ) // alternative constraint
setAltConstraint( enableAltConstraint );
m_dragPoint->SetPosition( controls->GetCursorPosition() );
if( m_altConstraint )
m_altConstraint->Apply();
else
m_dragPoint->ApplyConstraint();
updateItem();
updatePoints();
m_editPoints->ViewUpdate( KIGFX::VIEW_ITEM::GEOMETRY );
}
else if( evt->IsAction( &COMMON_ACTIONS::pointEditorUpdate ) )
{
updatePoints();
}
else if( evt->IsMouseUp( BUT_LEFT ) )
{
setAltConstraint( false );
modified = false;
}
else if( evt->IsCancel() )
{
if( modified ) // Restore the last change
{
wxCommandEvent dummy;
editFrame->GetBoardFromUndoList( dummy );
updatePoints();
modified = false;
}
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 );
}
setTransitions();
return 0;
}
void POINT_EDITOR::updateItem() const
{
EDA_ITEM* item = m_editPoints->GetParent();
switch( item->Type() )
{
case PCB_LINE_T:
{
DRAWSEGMENT* segment = static_cast<DRAWSEGMENT*>( item );
switch( segment->GetShape() )
{
case S_SEGMENT:
if( isModified( (*m_editPoints)[0] ) )
segment->SetStart( wxPoint( (*m_editPoints)[0].GetPosition().x,
(*m_editPoints)[0].GetPosition().y ) );
else if( isModified( (*m_editPoints)[1] ) )
segment->SetEnd( wxPoint( (*m_editPoints)[1].GetPosition().x,
(*m_editPoints)[1].GetPosition().y ) );
break;
case S_ARC:
{
const VECTOR2I& center = (*m_editPoints)[0].GetPosition();
const VECTOR2I& start = (*m_editPoints)[1].GetPosition();
const VECTOR2I& end = (*m_editPoints)[2].GetPosition();
if( center != segment->GetCenter() )
{
wxPoint moveVector = wxPoint( center.x, center.y ) - segment->GetCenter();
segment->Move( moveVector );
(*m_editPoints)[1].SetPosition( segment->GetArcStart() );
(*m_editPoints)[2].SetPosition( segment->GetArcEnd() );
}
else
{
segment->SetArcStart( wxPoint( start.x, start.y ) );
VECTOR2D startLine = start - center;
VECTOR2I endLine = end - center;
double newAngle = RAD2DECIDEG( endLine.Angle() - startLine.Angle() );
// Adjust the new angle to (counter)clockwise setting
bool clockwise = ( segment->GetAngle() > 0 );
if( clockwise && newAngle < 0.0 )
newAngle += 3600.0;
else if( !clockwise && newAngle > 0.0 )
newAngle -= 3600.0;
segment->SetAngle( newAngle );
}
break;
}
case S_CIRCLE:
{
const VECTOR2I& center = (*m_editPoints)[0].GetPosition();
const VECTOR2I& end = (*m_editPoints)[1].GetPosition();
if( isModified( (*m_editPoints)[0] ) )
{
wxPoint moveVector = wxPoint( center.x, center.y ) - segment->GetCenter();
segment->Move( moveVector );
}
else
{
segment->SetEnd( wxPoint( end.x, end.y ) );
}
break;
}
default: // suppress warnings
break;
}
break;
}
case PCB_ZONE_AREA_T:
{
ZONE_CONTAINER* zone = static_cast<ZONE_CONTAINER*>( item );
zone->ClearFilledPolysList();
CPolyLine* outline = zone->Outline();
for( int i = 0; i < outline->GetCornersCount(); ++i )
{
outline->SetX( i, (*m_editPoints)[i].GetPosition().x );
outline->SetY( i, (*m_editPoints)[i].GetPosition().y );
}
break;
}
case PCB_DIMENSION_T:
{
DIMENSION* dimension = static_cast<DIMENSION*>( item );
// Check which point is currently modified and updated dimension's points respectively
if( isModified( (*m_editPoints)[0] ) )
{
VECTOR2D featureLine( m_dragPoint->GetPosition() - dimension->GetOrigin() );
VECTOR2D crossBar( dimension->GetEnd() - dimension->GetOrigin() );
if( featureLine.Cross( crossBar ) > 0 )
dimension->SetHeight( -featureLine.EuclideanNorm() );
else
dimension->SetHeight( featureLine.EuclideanNorm() );
}
else if( isModified( (*m_editPoints)[1] ) )
{
VECTOR2D featureLine( m_dragPoint->GetPosition() - dimension->GetEnd() );
VECTOR2D crossBar( dimension->GetEnd() - dimension->GetOrigin() );
if( featureLine.Cross( crossBar ) > 0 )
dimension->SetHeight( -featureLine.EuclideanNorm() );
else
dimension->SetHeight( featureLine.EuclideanNorm() );
}
else if( isModified( (*m_editPoints)[2] ) )
{
dimension->SetOrigin( wxPoint( m_dragPoint->GetPosition().x, m_dragPoint->GetPosition().y ) );
(*m_editPoints)[0].SetConstraint( new EC_LINE( (*m_editPoints)[0], (*m_editPoints)[2] ) );
(*m_editPoints)[1].SetConstraint( new EC_LINE( (*m_editPoints)[1], (*m_editPoints)[3] ) );
}
else if( isModified( (*m_editPoints)[3] ) )
{
dimension->SetEnd( wxPoint( m_dragPoint->GetPosition().x, m_dragPoint->GetPosition().y ) );
(*m_editPoints)[0].SetConstraint( new EC_LINE( (*m_editPoints)[0], (*m_editPoints)[2] ) );
(*m_editPoints)[1].SetConstraint( new EC_LINE( (*m_editPoints)[1], (*m_editPoints)[3] ) );
}
break;
}
default:
break;
}
}
void POINT_EDITOR::finishItem() const
{
EDA_ITEM* item = m_editPoints->GetParent();
if( item->Type() == PCB_ZONE_AREA_T )
{
ZONE_CONTAINER* zone = static_cast<ZONE_CONTAINER*>( item );
if( zone->IsFilled() )
getEditFrame<PCB_EDIT_FRAME>()->Fill_Zone( zone );
}
}
void POINT_EDITOR::updatePoints() const
{
EDA_ITEM* item = m_editPoints->GetParent();
switch( item->Type() )
{
case PCB_LINE_T:
{
const DRAWSEGMENT* segment = static_cast<const DRAWSEGMENT*>( item );
{
switch( segment->GetShape() )
{
case S_SEGMENT:
(*m_editPoints)[0].SetPosition( segment->GetStart() );
(*m_editPoints)[1].SetPosition( segment->GetEnd() );
break;
case S_ARC:
(*m_editPoints)[0].SetPosition( segment->GetCenter() );
(*m_editPoints)[1].SetPosition( segment->GetArcStart() );
(*m_editPoints)[2].SetPosition( segment->GetArcEnd() );
break;
case S_CIRCLE:
(*m_editPoints)[0].SetPosition( segment->GetCenter() );
(*m_editPoints)[1].SetPosition( segment->GetEnd() );
break;
default: // suppress warnings
break;
}
break;
}
}
case PCB_ZONE_AREA_T:
{
const ZONE_CONTAINER* zone = static_cast<const ZONE_CONTAINER*>( item );
const CPolyLine* outline = zone->Outline();
for( int i = 0; i < outline->GetCornersCount(); ++i )
(*m_editPoints)[i].SetPosition( outline->GetPos( i ) );
break;
}
case PCB_DIMENSION_T:
{
const DIMENSION* dimension = static_cast<const DIMENSION*>( item );
(*m_editPoints)[0].SetPosition( dimension->m_crossBarO );
(*m_editPoints)[1].SetPosition( dimension->m_crossBarF );
(*m_editPoints)[2].SetPosition( dimension->m_featureLineGO );
(*m_editPoints)[3].SetPosition( dimension->m_featureLineDO );
break;
}
default:
break;
}
}
void POINT_EDITOR::setAltConstraint( bool aEnabled )
{
if( aEnabled )
{
EDIT_LINE* line = dynamic_cast<EDIT_LINE*>( m_dragPoint );
if( line )
{
if( m_editPoints->GetParent()->Type() == PCB_ZONE_AREA_T )
{
m_altConstraint.reset( new EC_CONVERGING( *line, *m_editPoints ) );
}
}
else
{
// Find a proper constraining point for 45 degrees mode
m_altConstrainer = get45DegConstrainer();
m_altConstraint.reset( new EC_45DEGREE( *m_dragPoint, m_altConstrainer ) );
}
}
else
{
m_altConstraint.reset();
}
}
EDIT_POINT POINT_EDITOR::get45DegConstrainer() const
{
EDA_ITEM* item = m_editPoints->GetParent();
switch( item->Type() )
{
case PCB_LINE_T:
{
const DRAWSEGMENT* segment = static_cast<const DRAWSEGMENT*>( item );
{
switch( segment->GetShape() )
{
case S_SEGMENT:
return *( m_editPoints->Next( *m_dragPoint ) ); // select the other end of line
case S_ARC:
case S_CIRCLE:
return (*m_editPoints)[0]; // center
default: // suppress warnings
break;
}
}
break;
}
case PCB_DIMENSION_T:
{
// Constraint for crossbar
if( isModified( (*m_editPoints)[2] ) )
return (*m_editPoints)[3];
else if( isModified( (*m_editPoints)[3] ) )
return (*m_editPoints)[2];
else
return EDIT_POINT( m_dragPoint->GetPosition() ); // no constraint
break;
}
default:
break;
}
// In any other case we may align item to its original position
return m_original;
}
void POINT_EDITOR::breakOutline( const VECTOR2I& aBreakPoint )
{
EDA_ITEM* item = m_editPoints->GetParent();
const SELECTION_TOOL::SELECTION& selection = m_selectionTool->GetSelection();
if( item->Type() == PCB_ZONE_AREA_T )
{
getEditFrame<PCB_EDIT_FRAME>()->OnModify();
getEditFrame<PCB_EDIT_FRAME>()->SaveCopyInUndoList( selection.items, UR_CHANGED );
ZONE_CONTAINER* zone = static_cast<ZONE_CONTAINER*>( item );
CPolyLine* outline = zone->Outline();
// Handle the last segment, so other segments can be easily handled in a loop
unsigned int nearestIdx = outline->GetCornersCount() - 1, nextNearestIdx = 0;
SEG side( VECTOR2I( outline->GetPos( nearestIdx ) ),
VECTOR2I( outline->GetPos( nextNearestIdx ) ) );
unsigned int nearestDist = side.Distance( aBreakPoint );
for( int i = 0; i < outline->GetCornersCount() - 2; ++i )
{
SEG side( VECTOR2I( outline->GetPos( i ) ), VECTOR2I( outline->GetPos( i + 1 ) ) );
unsigned int distance = side.Distance( aBreakPoint );
if( distance < nearestDist )
{
nearestDist = distance;
nearestIdx = i;
nextNearestIdx = i + 1;
}
}
// Find the point on the closest segment
VECTOR2I sideOrigin( outline->GetPos( nearestIdx ) );
VECTOR2I sideEnd( outline->GetPos( nextNearestIdx ) );
SEG nearestSide( sideOrigin, sideEnd );
VECTOR2I nearestPoint = nearestSide.NearestPoint( aBreakPoint );
// Do not add points that have the same coordinates as ones that already belong to polygon
// instead, add a point in the middle of the side
if( nearestPoint == sideOrigin || nearestPoint == sideEnd )
nearestPoint = ( sideOrigin + sideEnd ) / 2;
outline->InsertCorner( nearestIdx, nearestPoint.x, nearestPoint.y );
}
else if( item->Type() == PCB_LINE_T )
{
getEditFrame<PCB_EDIT_FRAME>()->OnModify();
getEditFrame<PCB_EDIT_FRAME>()->SaveCopyInUndoList( selection.items, UR_CHANGED );
DRAWSEGMENT* segment = static_cast<DRAWSEGMENT*>( item );
if( segment->GetShape() == S_SEGMENT )
{
SEG seg( segment->GetStart(), segment->GetEnd() );
VECTOR2I nearestPoint = seg.NearestPoint( aBreakPoint );
// Move the end of the line to the break point..
segment->SetEnd( wxPoint( nearestPoint.x, nearestPoint.y ) );
// and add another one starting from the break point
DRAWSEGMENT* newSegment = new DRAWSEGMENT( *segment );
newSegment->ClearSelected();
newSegment->SetStart( wxPoint( nearestPoint.x, nearestPoint.y ) );
newSegment->SetEnd( wxPoint( seg.B.x, seg.B.y ) );
getModel<BOARD>( PCB_T )->Add( newSegment );
getView()->Add( newSegment );
}
}
}
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