wxSize wxStaticBitmap::DoGetBestSize() const
{
if ( ImageIsOk() )
{
wxSize best(m_image->GetWidth(), m_image->GetHeight());
CacheBestSize(best);
return best;
}
// this is completely arbitrary
return wxSize(16, 16);
}
void wxStaticBitmap::SetImageNoCopy( wxGDIImage* image)
{
Free();
InvalidateBestSize();
m_isIcon = image->IsKindOf( wxCLASSINFO(wxIcon) );
// the image has already been copied
m_image = image;
int x, y;
int w, h;
GetPosition(&x, &y);
GetSize(&w, &h);
#ifdef __WIN32__
HANDLE handle = (HANDLE)m_image->GetHandle();
LONG style = ::GetWindowLong( (HWND)GetHWND(), GWL_STYLE ) ;
::SetWindowLong( (HWND)GetHWND(), GWL_STYLE, ( style & ~( SS_BITMAP|SS_ICON ) ) |
( m_isIcon ? SS_ICON : SS_BITMAP ) );
HGDIOBJ oldHandle = (HGDIOBJ)::SendMessage(GetHwnd(), STM_SETIMAGE,
m_isIcon ? IMAGE_ICON : IMAGE_BITMAP, (LPARAM)handle);
// detect if this is still the handle we passed before or
// if the static-control made a copy of the bitmap!
if (m_currentHandle != 0 && oldHandle != (HGDIOBJ) m_currentHandle)
{
// the static control made a copy and we are responsible for deleting it
DeleteObject((HGDIOBJ) oldHandle);
}
m_currentHandle = (WXHANDLE)handle;
#endif // Win32
if ( ImageIsOk() )
{
int width = image->GetWidth(),
height = image->GetHeight();
if ( width && height )
{
w = width;
h = height;
::MoveWindow(GetHwnd(), x, y, width, height, FALSE);
}
}
RECT rect;
rect.left = x;
rect.top = y;
rect.right = x + w;
rect.bottom = y + h;
::InvalidateRect(GetHwndOf(GetParent()), &rect, TRUE);
}
wxSize wxStaticBitmap::DoGetBestClientSize() const
{
wxSize size;
if ( ImageIsOk() )
{
size = m_image->GetSize();
}
else // No image yet
{
// this is completely arbitrary
size.x =
size.y = 16;
}
return size;
}
void wxStaticBitmap::SetImageNoCopy( wxGDIImage* image)
{
Free();
InvalidateBestSize();
m_isIcon = image->IsKindOf( wxCLASSINFO(wxIcon) );
// the image has already been copied
m_image = image;
int x, y;
int w, h;
GetPosition(&x, &y);
GetSize(&w, &h);
// Normally we just use the handle of provided image but in some cases we
// create our own temporary bitmap, so the actual handle may end up being
// different from the original one.
const HANDLE handleOrig = (HANDLE)m_image->GetHandle();
HANDLE handle = handleOrig;
#if wxUSE_WXDIB
if ( !m_isIcon )
{
// wxBitmap normally stores alpha in pre-multiplied format but
// apparently STM_SETIMAGE message handler does pre-multiplication
// internally so we need to undo the pre-multiplication here for a
// while (this is similar to what we do in ImageList::Add()).
const wxBitmap& bmp = static_cast<wxBitmap&>(*image);
if ( bmp.HasAlpha() )
{
// For bitmap with alpha channel create temporary DIB with
// not-premultiplied alpha values.
handle = wxDIB(bmp.ConvertToImage(),
wxDIB::PixelFormat_NotPreMultiplied).Detach();
}
}
#endif // wxUSE_WXDIB
LONG style = ::GetWindowLong( (HWND)GetHWND(), GWL_STYLE ) ;
::SetWindowLong( (HWND)GetHWND(), GWL_STYLE, ( style & ~( SS_BITMAP|SS_ICON ) ) |
( m_isIcon ? SS_ICON : SS_BITMAP ) );
MSWReplaceImageHandle((WXLPARAM)handle);
DeleteCurrentHandleIfNeeded();
m_currentHandle = (WXHANDLE)handle;
m_ownsCurrentHandle = handle != handleOrig;
if ( ImageIsOk() )
{
int width = image->GetWidth(),
height = image->GetHeight();
if ( width && height )
{
w = width;
h = height;
::MoveWindow(GetHwnd(), x, y, width, height, FALSE);
}
}
RECT rect;
rect.left = x;
rect.top = y;
rect.right = x + w;
rect.bottom = y + h;
::InvalidateRect(GetHwndOf(GetParent()), &rect, TRUE);
}
