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Allows negative solder-mask margin in dialog pad properties. 

However, this is not allowed for custom shapes pads, because it can create very strange solder mask shapes.
This commit is contained in:
jean-pierre charras 2017-12-16 20:43:47 +01:00
parent 0ef2a7f08b
commit 766a9bec1e
1 changed files with 18 additions and 1 deletions
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19
pcbnew/dialogs/dialog_pad_properties.cpp
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@ -1027,9 +1027,26 @@ bool DIALOG_PAD_PROPERTIES::padValuesOK()
error_msgs.Add( _( "Pad local clearance must be zero or greater than zero" ) );
}
// Some pads need a negative solder mask clearance (mainly for BGA with small pads)
// However the negative solder mask clearance must not create negative mask size
// Therefore test for minimal acceptable negative value
// Hovewer, a negative value can give strange result with custom shapes, so it is not
// allowed for custom pad shape
if( m_dummyPad->GetLocalSolderMaskMargin() < 0 )
{
error_msgs.Add( _( "Pad local solder mask clearance must be zero or greater than zero" ) );
if( m_dummyPad->GetShape() == PAD_SHAPE_CUSTOM )
error_msgs.Add( _( "Pad local solder mask clearance must be zero or greater than zero" ) );
else
{
int min_smClearance = -std::min( m_dummyPad->GetSize().x, m_dummyPad->GetSize().y )/2;
if( m_dummyPad->GetLocalSolderMaskMargin() <= min_smClearance )
{
error_msgs.Add( wxString::Format(
_( "Pad local solder mask clearance must be greater than %s" ),
StringFromValue( g_UserUnit, min_smClearance, true ) ) );
}
}
}
if( m_dummyPad->GetLocalSolderPasteMargin() > 0 )