/**
* Process an area that has been modified, by clipping its polygon against
* itself and the polygons for any other areas on the same net.
* This may change the number and order of copper areas in the net.
* @param aModifiedZonesList = a PICKED_ITEMS_LIST * where to store deleted or added areas
* (useful in undo commands can be NULL
* @param modified_area = area to test
* @param bMessageBoxArc if true, shows message when clipping can't be done due to arcs.
* @param bMessageBoxInt == true, shows message when clipping occurs.
* @return :
* -1 if arcs intersect other sides, so polygon can't be clipped
* 0 if no intersecting sides
* 1 if intersecting sides, polygon clipped
*/
int BOARD::AreaPolygonModified( PICKED_ITEMS_LIST* aModifiedZonesList,
ZONE_CONTAINER* modified_area,
bool bMessageBoxArc,
bool bMessageBoxInt )
{
// clip polygon against itself
int test = ClipAreaPolygon( aModifiedZonesList, modified_area, bMessageBoxArc, bMessageBoxInt );
if( test == -1 )
return test;
// now see if we need to clip against other areas
int layer = modified_area->GetLayer();
bool bCheckAllAreas = false;
if( test == 1 )
bCheckAllAreas = true;
else
bCheckAllAreas = TestAreaIntersections( modified_area );
if( bCheckAllAreas )
CombineAllAreasInNet( aModifiedZonesList, modified_area->GetNet(), bMessageBoxInt, true );
if( layer >= FIRST_NO_COPPER_LAYER ) // Refill non copper zones on this layer
{
if( m_ZoneDescriptorList.size() > 0 )
{
for( unsigned ia = 0; ia < m_ZoneDescriptorList.size(); ia++ )
if( m_ZoneDescriptorList[ia]->GetLayer() == layer )
m_ZoneDescriptorList[ia]->BuildFilledPolysListData( this );
}
}
// Test for bad areas: all zones must have more than 2 corners:
// Note: should not happen, but just in case.
for( unsigned ia1 = 0; ia1 < m_ZoneDescriptorList.size() - 1; )
{
ZONE_CONTAINER* zone = m_ZoneDescriptorList[ia1];
if( zone->GetNumCorners() >= 3 )
ia1++;
else // Remove zone because it is incorrect:
RemoveArea( aModifiedZonesList, zone );
}
return test;
}
bool BOARD::OnAreaPolygonModified( PICKED_ITEMS_LIST* aModifiedZonesList,
ZONE_CONTAINER* modified_area )
{
// clip polygon against itself
bool modified = NormalizeAreaPolygon( aModifiedZonesList, modified_area );
// now see if we need to clip against other areas
/*
LAYER_NUM layer = modified_area->GetLayer();
*/
bool bCheckAllAreas = TestAreaIntersections( modified_area );
if( bCheckAllAreas )
{
modified = true;
CombineAllAreasInNet( aModifiedZonesList, modified_area->GetNetCode(), true );
}
/*
FIXME : do we really need this?
if( !IsCopperLayer( layer ) ) // Refill non copper zones on this layer
{
for( unsigned ia = 0; ia < m_ZoneDescriptorList.size(); ia++ )
if( m_ZoneDescriptorList[ia]->GetLayer() == layer )
m_ZoneDescriptorList[ia]->BuildFilledSolidAreasPolygons( this );
}
*/
// Test for bad areas: all zones must have more than 2 corners:
// Note: should not happen, but just in case.
for( unsigned ii = 0; ii < m_ZoneDescriptorList.size(); )
{
ZONE_CONTAINER* zone = m_ZoneDescriptorList[ii];
if( zone->GetNumCorners() >= 3 )
ii++;
else // Remove zone because it is incorrect:
RemoveArea( aModifiedZonesList, zone );
}
return modified;
}
