// wxSubwindows contains all HWNDs making part of a single wx control
// ----------------------------------------------------------------------------
-class WXDLLEXPORT wxSubwindows
+class WXDLLIMPEXP_CORE wxSubwindows
{
public:
// the number of subwindows can be specified either as parameter to ctor or
m_count = n;
m_hwnds = (HWND *)calloc(n, sizeof(HWND));
+ m_ids = new wxWindowIDRef[n];
}
// non-virtual dtor, this class is not supposed to be used polymorphically
{
for ( size_t n = 0; n < m_count; n++ )
{
- ::DestroyWindow(m_hwnds[n]);
+ if ( m_hwnds[n] )
+ ::DestroyWindow(m_hwnds[n]);
}
free(m_hwnds);
+ delete [] m_ids;
}
// get the number of subwindows
return m_hwnds[n];
}
- HWND& operator[](size_t n) { return Get(n); }
HWND operator[](size_t n) const
{
- return wx_const_cast(wxSubwindows *, this)->Get(n);
+ return const_cast<wxSubwindows *>(this)->Get(n);
+ }
+
+ // initialize the given window: id will be stored in wxWindowIDRef ensuring
+ // that it is not reused while this object exists
+ void Set(size_t n, HWND hwnd, wxWindowID id)
+ {
+ wxASSERT_MSG( n < m_count, _T("subwindow index out of range") );
+
+ m_hwnds[n] = hwnd;
+ m_ids[n] = id;
}
// check if we have this window
int sw = show ? SW_SHOW : SW_HIDE;
for ( size_t n = 0; n < m_count; n++ )
{
- ::ShowWindow(m_hwnds[n], sw);
+ if ( m_hwnds[n] )
+ ::ShowWindow(m_hwnds[n], sw);
}
}
{
for ( size_t n = 0; n < m_count; n++ )
{
- ::EnableWindow(m_hwnds[n], enable);
+ if ( m_hwnds[n] )
+ ::EnableWindow(m_hwnds[n], enable);
}
}
for ( size_t n = 0; n < m_count; n++ )
{
- ::SendMessage(m_hwnds[n], WM_SETFONT, (WPARAM)hfont, 0);
+ if ( m_hwnds[n] )
+ {
+ ::SendMessage(m_hwnds[n], WM_SETFONT, (WPARAM)hfont, 0);
- // otherwise the window might not be redrawn correctly
- ::InvalidateRect(m_hwnds[n], NULL, FALSE /* don't erase bg */);
+ // otherwise the window might not be redrawn correctly
+ ::InvalidateRect(m_hwnds[n], NULL, FALSE /* don't erase bg */);
+ }
}
}
wxRect r;
for ( size_t n = 0; n < m_count; n++ )
{
- RECT rc;
- ::GetWindowRect(m_hwnds[n], &rc);
+ if ( m_hwnds[n] )
+ {
+ RECT rc;
+
+ ::GetWindowRect(m_hwnds[n], &rc);
- r.Union(wxRectFromRECT(rc));
+ r.Union(wxRectFromRECT(rc));
+ }
}
return r;
// the HWNDs we contain
HWND *m_hwnds;
+ // the IDs of the windows
+ wxWindowIDRef *m_ids;
+
DECLARE_NO_COPY_CLASS(wxSubwindows)
};