const SHAPE_LINE_CHAIN ConvexHull( const SHAPE_CONVEX& aConvex, int aClearance )
{
// this defines the horizontal and vertical lines in the hull octagon
BOX2I box = aConvex.BBox( aClearance + HULL_MARGIN );
box.Normalize();
SEG topline = SEG( VECTOR2I( box.GetX(), box.GetY() + box.GetHeight() ),
VECTOR2I( box.GetX() + box.GetWidth(), box.GetY() + box.GetHeight() ) );
SEG rightline = SEG( VECTOR2I( box.GetX() + box.GetWidth(), box.GetY() + box.GetHeight() ),
VECTOR2I( box.GetX() + box.GetWidth(), box.GetY() ) );
SEG bottomline = SEG( VECTOR2I( box.GetX() + box.GetWidth(), box.GetY() ),
box.GetOrigin() );
SEG leftline = SEG( box.GetOrigin(), VECTOR2I( box.GetX(), box.GetY() + box.GetHeight() ) );
const SHAPE_LINE_CHAIN& vertices = aConvex.Vertices();
// top right diagonal
VECTOR2I corner = box.GetOrigin() + box.GetSize();
SEG toprightline = SEG( corner,
corner + VECTOR2I( box.GetHeight(), -box.GetHeight() ) );
MoveDiagonal( toprightline, vertices, aClearance );
// bottom right diagonal
corner = box.GetOrigin() + VECTOR2I( box.GetWidth(), 0 );
SEG bottomrightline = SEG( corner + VECTOR2I( box.GetHeight(), box.GetHeight() ),
corner );
MoveDiagonal( bottomrightline, vertices, aClearance );
// bottom left diagonal
corner = box.GetOrigin();
SEG bottomleftline = SEG( corner,
corner + VECTOR2I( -box.GetHeight(), box.GetHeight() ) );
MoveDiagonal( bottomleftline, vertices, aClearance );
// top left diagonal
corner = box.GetOrigin() + VECTOR2I( 0, box.GetHeight() );
SEG topleftline = SEG( corner + VECTOR2I( -box.GetHeight(), -box.GetHeight() ),
corner );
MoveDiagonal( topleftline, vertices, aClearance );
SHAPE_LINE_CHAIN octagon;
octagon.SetClosed( true );
octagon.Append( *leftline.IntersectLines( bottomleftline ) );
octagon.Append( *bottomline.IntersectLines( bottomleftline ) );
octagon.Append( *bottomline.IntersectLines( bottomrightline ) );
octagon.Append( *rightline.IntersectLines( bottomrightline ) );
octagon.Append( *rightline.IntersectLines( toprightline ) );
octagon.Append( *topline.IntersectLines( toprightline ) );
octagon.Append( *topline.IntersectLines( topleftline ) );
octagon.Append( *leftline.IntersectLines( topleftline ) );
return octagon;
}
int PCBNEW_CONTROL::ZoomFitScreen( const TOOL_EVENT& aEvent )
{
KIGFX::VIEW* view = getView();
EDA_DRAW_PANEL_GAL* galCanvas = m_frame->GetGalCanvas();
BOARD* board = getModel<BOARD>();
board->ComputeBoundingBox();
BOX2I boardBBox = board->ViewBBox();
VECTOR2D scrollbarSize = VECTOR2D( galCanvas->GetSize() - galCanvas->GetClientSize() );
VECTOR2D screenSize = view->ToWorld( galCanvas->GetClientSize(), false );
if( boardBBox.GetWidth() == 0 || boardBBox.GetHeight() == 0 )
{
// Empty view
view->SetScale( 17.0 ); // works fine for the standard worksheet frame
view->SetCenter( screenSize / 2.0 );
}
else
{
VECTOR2D vsize = boardBBox.GetSize();
double scale = view->GetScale() / std::max( fabs( vsize.x / screenSize.x ),
fabs( vsize.y / screenSize.y ) );
view->SetScale( scale );
view->SetCenter( boardBBox.Centre() );
}
// Take scrollbars into account
VECTOR2D worldScrollbarSize = view->ToWorld( scrollbarSize, false );
view->SetCenter( view->GetCenter() + worldScrollbarSize / 2.0 );
return 0;
}
int PCBNEW_CONTROL::ZoomFitScreen( const TOOL_EVENT& aEvent )
{
KIGFX::VIEW* view = m_frame->GetGalCanvas()->GetView();
KIGFX::GAL* gal = m_frame->GetGalCanvas()->GetGAL();
BOARD* board = getModel<BOARD>();
board->ComputeBoundingBox();
BOX2I boardBBox = board->ViewBBox();
VECTOR2I screenSize = gal->GetScreenPixelSize();
if( boardBBox.GetSize().x == 0 || boardBBox.GetSize().y == 0 )
{
// Empty view
view->SetCenter( view->ToWorld( VECTOR2D( screenSize.x / 2, screenSize.y / 2 ) ) );
view->SetScale( 17.0 );
}
else
{
// Autozoom to board
double iuPerX = screenSize.x ? boardBBox.GetWidth() / screenSize.x : 1.0;
double iuPerY = screenSize.y ? boardBBox.GetHeight() / screenSize.y : 1.0;
double bestZoom = std::max( iuPerX, iuPerY );
double zoomFactor = gal->GetWorldScale() / gal->GetZoomFactor();
double zoom = 1.0 / ( zoomFactor * bestZoom );
view->SetCenter( boardBBox.Centre() );
view->SetScale( zoom );
}
return 0;
}
int PCBNEW_CONTROL::ZoomFitScreen( TOOL_EVENT& aEvent )
{
KIGFX::VIEW* view = m_frame->GetGalCanvas()->GetView();
KIGFX::GAL* gal = m_frame->GetGalCanvas()->GetGAL();
BOX2I boardBBox = getModel<BOARD>( PCB_T )->ViewBBox();
VECTOR2I screenSize = gal->GetScreenPixelSize();
double iuPerX = screenSize.x ? boardBBox.GetWidth() / screenSize.x : 1.0;
double iuPerY = screenSize.y ? boardBBox.GetHeight() / screenSize.y : 1.0;
double bestZoom = std::max( iuPerX, iuPerY );
// This is needed to avoid "jumpy" zooms if first hot key was used and then mouse scroll
// (or other way round).
m_frame->GetScreen()->SetZoom( bestZoom );
double zoomFactor = gal->GetWorldScale() / gal->GetZoomFactor();
double zoom = 1.0 / ( zoomFactor * bestZoom );
view->SetScale( zoom );
view->SetCenter( boardBBox.Centre() );
setTransitions();
return 0;
}