first pass of wxUniv merge - nothing works, most parts don't even compile

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@10673 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/univ/theme.cpp

@@ -0,0 +1,140 @@
+///////////////////////////////////////////////////////////////////////////////
+// Name:        univ/theme.cpp
+// Purpose:     implementation of wxTheme
+// Author:      Vadim Zeitlin
+// Modified by:
+// Created:     06.08.00
+// RCS-ID:      $Id$
+// Copyright:   (c) 2000 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
+// Licence:     wxWindows license
+///////////////////////////////////////////////////////////////////////////////
+
+// ===========================================================================
+// declarations
+// ===========================================================================
+
+// ---------------------------------------------------------------------------
+// headers
+// ---------------------------------------------------------------------------
+
+#ifdef __GNUG__
+    #pragma implementation "theme.h"
+#endif
+
+// For compilers that support precompilation, includes "wx.h".
+#include "wx/wxprec.h"
+
+#ifdef __BORLANDC__
+    #pragma hdrstop
+#endif
+
+#ifndef WX_PRECOMP
+    #include "wx/intl.h"
+    #include "wx/log.h"
+#endif // WX_PRECOMP
+
+#include "wx/univ/renderer.h"
+#include "wx/univ/inphand.h"
+#include "wx/univ/theme.h"
+
+// ============================================================================
+// implementation
+// ============================================================================
+
+wxThemeInfo *wxTheme::ms_allThemes = (wxThemeInfo *)NULL;
+wxTheme *wxTheme::ms_theme = (wxTheme *)NULL;
+
+// ----------------------------------------------------------------------------
+// "dynamic" theme creation
+// ----------------------------------------------------------------------------
+
+wxThemeInfo::wxThemeInfo(Constructor c,
+                         const wxChar *n,
+                         const wxChar *d)
+           : name(n), desc(d), ctor(c)
+{
+    // insert us (in the head of) the linked list
+    next = wxTheme::ms_allThemes;
+    wxTheme::ms_allThemes = this;
+}
+
+/* static */ wxTheme *wxTheme::Create(const wxString& name)
+{
+    // find the theme in the list by name
+    wxThemeInfo *info = ms_allThemes;
+    while ( info )
+    {
+        if ( name == info->name )
+        {
+            return info->ctor();
+        }
+
+        info = info->next;
+    }
+
+    return (wxTheme *)NULL;
+}
+
+// ----------------------------------------------------------------------------
+// the default theme (called by wxApp::OnInitGui)
+// ----------------------------------------------------------------------------
+
+/* static */ bool wxTheme::CreateDefault()
+{
+    if ( ms_theme )
+    {
+        // we already have a theme
+        return TRUE;
+    }
+
+    wxString nameDefTheme;
+
+    // use the environment variable first
+    const wxChar *p = wxGetenv(_T("WXTHEME"));
+    if ( p )
+    {
+        nameDefTheme = p;
+    }
+    else // use native theme by default
+    {
+        #if defined(__WXMSW__)
+            nameDefTheme = _T("win32");
+        #elif defined(__WXGTK__)
+            nameDefTheme = _T("gtk");
+        #endif
+    }
+
+    ms_theme = Create(nameDefTheme);
+
+    // fallback to the first one in the list
+    if ( !ms_theme && ms_allThemes )
+    {
+        ms_theme = ms_allThemes->ctor();
+    }
+
+    // abort if still nothing
+    if ( !ms_theme )
+    {
+        wxLogError(_("Failed to initialize GUI: no built-in themes found."));
+
+        return FALSE;
+    }
+
+    return TRUE;
+}
+
+/* static */ wxTheme *wxTheme::Set(wxTheme *theme)
+{
+    wxTheme *themeOld = ms_theme;
+    ms_theme = theme;
+    return themeOld;
+}
+
+// ----------------------------------------------------------------------------
+// assorted trivial dtors
+// ----------------------------------------------------------------------------
+
+wxTheme::~wxTheme()
+{
+}
+