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;
}