added wxNativeContainerWindow and implemented it for wxMSW and wxGTK

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@52427 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/nativewin.h

@@ -0,0 +1,155 @@
+///////////////////////////////////////////////////////////////////////////////
+// Name:        wx/nativewin.h
+// Purpose:     classes allowing to wrap a native window handle
+// Author:      Vadim Zeitlin
+// Created:     2008-03-05
+// RCS-ID:      $Id$
+// Copyright:   (c) 2008 Vadim Zeitlin <vadim@wxwindows.org>
+// Licence:     wxWindows licence
+///////////////////////////////////////////////////////////////////////////////
+
+#ifndef _WX_NATIVEWIN_H_
+#define _WX_NATIVEWIN_H_
+
+#include "wx/toplevel.h"
+
+// this symbol can be tested in the user code to see if the current wx port has
+// support for creating wxNativeContainerWindow from native windows
+//
+// be optimistic by default, we undefine it below if we don't have it finally
+#define wxHAS_NATIVE_CONTAINER_WINDOW
+
+// we define the following typedefs for each of the platform supporting native
+// windows wrapping:
+//
+//  - wxNativeContainerWindowHandle is the toolkit-level handle of the native
+//    window, i.e. HWND/GdkWindow*/NSWindow
+//
+//  - wxNativeContainerWindowId is the lowest level identifier of the native
+//    window, i.e. HWND/GdkNativeWindow/NSWindow (so it's the same as above for
+//    all platforms except GTK where we also can work with Window/XID)
+//
+// later we'll also have
+//
+//  - wxNativeWindowHandle for child windows (which will be wrapped by
+//    wxNativeWindow<T> class), it is HWND/GtkWidget*/ControlRef
+#if defined(__WXMSW__)
+    #include "wx/msw/wrapwin.h"
+
+    typedef HWND wxNativeContainerWindowId;
+    typedef HWND wxNativeContainerWindowHandle;
+#elif defined(__WXGTK__)
+    #include <gdk/gdk.h>
+
+    typedef GdkNativeWindow wxNativeContainerWindowId;
+    typedef GdkWindow *wxNativeContainerWindowHandle;
+#else
+    // no support for using native windows under this platform yet
+    #undef wxHAS_NATIVE_CONTAINER_WINDOW
+#endif
+
+#ifdef wxHAS_NATIVE_CONTAINER_WINDOW
+
+// ----------------------------------------------------------------------------
+// wxNativeContainerWindow: can be used for creating other wxWindows inside it
+// ----------------------------------------------------------------------------
+
+class WXDLLIMPEXP_CORE wxNativeContainerWindow : public wxTopLevelWindow
+{
+public:
+    // default ctor, call Create() later
+    wxNativeContainerWindow() { }
+
+    // create a window from an existing native window handle
+    //
+    // use GetHandle() to check if the creation was successful, it will return
+    // 0 if the handle was invalid
+    wxNativeContainerWindow(wxNativeContainerWindowHandle handle)
+    {
+        Create(handle);
+    }
+
+    // same as ctor above but with a return code
+    bool Create(wxNativeContainerWindowHandle handle);
+
+#if defined(__WXGTK__)
+    // this is a convenient ctor for wxGTK applications which can also create
+    // the objects of this class from the really native window handles and not
+    // only the GdkWindow objects
+    //
+    // wxNativeContainerWindowId is Window (i.e. an XID, i.e. an int) under X11
+    // (when GDK_WINDOWING_X11 is defined) or HWND under Win32
+    wxNativeContainerWindow(wxNativeContainerWindowId winid) { Create(winid); }
+
+    bool Create(wxNativeContainerWindowId winid);
+#endif // wxGTK
+
+    // unlike for the normal windows, dtor will not destroy the native window
+    // as it normally doesn't belong to us
+    virtual ~wxNativeContainerWindow();
+
+
+    // provide (trivial) implementation of the base class pure virtuals
+    virtual void SetTitle(const wxString& WXUNUSED(title))
+    {
+        wxFAIL_MSG( "not implemented for native windows" );
+    }
+
+    virtual wxString GetTitle() const
+    {
+        wxFAIL_MSG( "not implemented for native windows" );
+
+        return wxString();
+    }
+
+    virtual void Maximize(bool WXUNUSED(maximize) = true)
+    {
+        wxFAIL_MSG( "not implemented for native windows" );
+    }
+
+    virtual bool IsMaximized() const
+    {
+        wxFAIL_MSG( "not implemented for native windows" );
+
+        return false;
+    }
+
+    virtual void Iconize(bool WXUNUSED(iconize) = true)
+    {
+        wxFAIL_MSG( "not implemented for native windows" );
+    }
+
+    virtual bool IsIconized() const
+    {
+        // this is called by wxGTK implementation so don't assert
+        return false;
+    }
+
+    virtual void Restore()
+    {
+        wxFAIL_MSG( "not implemented for native windows" );
+    }
+
+    virtual bool ShowFullScreen(bool WXUNUSED(show),
+                                long WXUNUSED(style) = wxFULLSCREEN_ALL)
+    {
+        wxFAIL_MSG( "not implemented for native windows" );
+
+        return false;
+    }
+
+    virtual bool IsFullScreen() const
+    {
+        wxFAIL_MSG( "not implemented for native windows" );
+
+        return false;
+    }
+
+private:
+    DECLARE_NO_COPY_CLASS(wxNativeContainerWindow)
+};
+
+#endif // wxHAS_NATIVE_CONTAINER_WINDOW
+
+#endif // _WX_NATIVEWIN_H_
+