http://code.google.com/p/rpcs3/source/detail?r=44

wxWidgets/include/wx/msw/subwin.h

@@ -0,0 +1,195 @@
+///////////////////////////////////////////////////////////////////////////////
+// Name:        wx/msw/subwin.h
+// Purpose:     helper for implementing the controls with subwindows
+// Author:      Vadim Zeitlin
+// Modified by:
+// Created:     2004-12-11
+// RCS-ID:      $Id: subwin.h 30981 2004-12-13 01:02:32Z VZ $
+// Copyright:   (c) 2004 Vadim Zeitlin <vadim@wxwindows.org>
+// Licence:     wxWindows licence
+///////////////////////////////////////////////////////////////////////////////
+
+#ifndef _WX_MSW_SUBWIN_H_
+#define _WX_MSW_SUBWIN_H_
+
+#include "wx/msw/private.h"
+
+// ----------------------------------------------------------------------------
+// wxSubwindows contains all HWNDs making part of a single wx control
+// ----------------------------------------------------------------------------
+
+class WXDLLEXPORT wxSubwindows
+{
+public:
+    // the number of subwindows can be specified either as parameter to ctor or
+    // later in Create()
+    wxSubwindows(size_t n = 0) { Init(); if ( n ) Create(n); }
+
+    // allocate enough space for the given number of windows
+    void Create(size_t n)
+    {
+        wxASSERT_MSG( !m_hwnds, _T("Create() called twice?") );
+
+        m_count = n;
+        m_hwnds = (HWND *)calloc(n, sizeof(HWND));
+    }
+
+    // non-virtual dtor, this class is not supposed to be used polymorphically
+    ~wxSubwindows()
+    {
+        for ( size_t n = 0; n < m_count; n++ )
+        {
+            ::DestroyWindow(m_hwnds[n]);
+        }
+
+        free(m_hwnds);
+    }
+
+    // get the number of subwindows
+    size_t GetCount() const { return m_count; }
+
+    // access a given window
+    HWND& Get(size_t n)
+    {
+        wxASSERT_MSG( n < m_count, _T("subwindow index out of range") );
+
+        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);
+    }
+
+    // check if we have this window
+    bool HasWindow(HWND hwnd)
+    {
+        for ( size_t n = 0; n < m_count; n++ )
+        {
+            if ( m_hwnds[n] == hwnd )
+                return true;
+        }
+
+        return false;
+    }
+
+
+    // methods which are forwarded to all subwindows
+    // ---------------------------------------------
+
+    // show/hide everything
+    void Show(bool show)
+    {
+        int sw = show ? SW_SHOW : SW_HIDE;
+        for ( size_t n = 0; n < m_count; n++ )
+        {
+            ::ShowWindow(m_hwnds[n], sw);
+        }
+    }
+
+    // enable/disable everything
+    void Enable(bool enable)
+    {
+        for ( size_t n = 0; n < m_count; n++ )
+        {
+            ::EnableWindow(m_hwnds[n], enable);
+        }
+    }
+
+    // set font for all windows
+    void SetFont(const wxFont& font)
+    {
+        HFONT hfont = GetHfontOf(font);
+        wxCHECK_RET( hfont, _T("invalid font") );
+
+        for ( size_t n = 0; n < m_count; 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 */);
+        }
+    }
+
+    // find the bounding box for all windows
+    wxRect GetBoundingBox() const
+    {
+        wxRect r;
+        for ( size_t n = 0; n < m_count; n++ )
+        {
+            RECT rc;
+            ::GetWindowRect(m_hwnds[n], &rc);
+
+            r.Union(wxRectFromRECT(rc));
+        }
+
+        return r;
+    }
+
+private:
+    void Init()
+    {
+        m_count = 0;
+        m_hwnds = NULL;
+    }
+
+    // number of elements in m_hwnds array
+    size_t m_count;
+
+    // the HWNDs we contain
+    HWND *m_hwnds;
+
+
+    DECLARE_NO_COPY_CLASS(wxSubwindows)
+};
+
+// convenient macro to forward a few methods which are usually propagated to
+// subwindows to a wxSubwindows object
+//
+// parameters should be:
+//  - cname the name of the class implementing these methods
+//  - base the name of its base class
+//  - subwins the name of the member variable of type wxSubwindows *
+#define WX_FORWARD_STD_METHODS_TO_SUBWINDOWS(cname, base, subwins)            \
+    bool cname::ContainsHWND(WXHWND hWnd) const                               \
+    {                                                                         \
+        return subwins && subwins->HasWindow((HWND)hWnd);                     \
+    }                                                                         \
+                                                                              \
+    bool cname::Show(bool show)                                               \
+    {                                                                         \
+        if ( !base::Show(show) )                                              \
+            return false;                                                     \
+                                                                              \
+        if ( subwins )                                                        \
+            subwins->Show(show);                                              \
+                                                                              \
+        return true;                                                          \
+    }                                                                         \
+                                                                              \
+    bool cname::Enable(bool enable)                                           \
+    {                                                                         \
+        if ( !base::Enable(enable) )                                          \
+            return false;                                                     \
+                                                                              \
+        if ( subwins )                                                        \
+            subwins->Enable(enable);                                          \
+                                                                              \
+        return true;                                                          \
+    }                                                                         \
+                                                                              \
+    bool cname::SetFont(const wxFont& font)                                   \
+    {                                                                         \
+        if ( !base::SetFont(font) )                                           \
+            return false;                                                     \
+                                                                              \
+        if ( subwins )                                                        \
+            subwins->SetFont(font);                                           \
+                                                                              \
+        return true;                                                          \
+    }
+
+
+#endif // _WX_MSW_SUBWIN_H_
+