Method TipWindow

src/widgets/ASlider.cpp:173–214

END_EVENT_TABLE()

TipWindow::TipWindow(wxWindow *parent, const TranslatableStrings & labels)
:  wxFrame(parent, wxID_ANY, wxEmptyString, wxDefaultPosition, wxDefaultSize,
           wxFRAME_SHAPED | wxNO_BORDER | wxFRAME_NO_TASKBAR | wxFRAME_FLOAT_ON_PARENT )
{
   SetBackgroundStyle(wxBG_STYLE_PAINT);
   SetBackgroundColour(wxTransparentColour);

   mFont.SetPointSize(sliderFontSize);
   mFont.SetFamily(wxFONTFAMILY_SWISS);
   mFont.SetStyle(wxFONTSTYLE_NORMAL);
   mFont.SetWeight(wxFONTWEIGHT_NORMAL);

   mWidth = mHeight = 0;
   for ( const auto &label : labels ) {
      int width, height;
      GetTextExtent(label.Translation(), &width, &height, NULL, NULL, &mFont);
      mWidth =  std::max( mWidth,  width );
      mHeight = std::max( mHeight, height );
   }

   // Pad to allow for curved corners
   mWidth += 8;
   mHeight += 8;

#if defined(__WXMAC__)
   // Use a bitmap region to set the shape since just adding an unfilled path
   // will make the window transparent
   wxBitmap shape(mWidth, mHeight);
   wxMemoryDC dc(shape);

   dc.SetPen(*wxBLACK_PEN);
   dc.SetBrush(*wxBLACK_BRUSH);
   dc.DrawRoundedRectangle(0, 0, mWidth, mHeight, 5);
   dc.SelectObject(wxNullBitmap);

   SetShape(wxRegion(shape, *wxWHITE));
#else
   wxGraphicsPath path = wxGraphicsRenderer::GetDefaultRenderer()->CreatePath();
   path.AddRoundedRectangle(0, 0, mWidth, mHeight, 5);
   SetShape(path);
#endif
}

wxSize TipWindow::GetSize() const
{