Compilation fix for old GCC versions.

[wxWidgets.git] / include / wx / univ / theme.h

diff --git a/include/wx/univ/theme.h b/include/wx/univ/theme.h
index 62c0d53df5a261d81c86c9812af4a764cc894882..a386a2cca837697a80aa8e019ebf4f58dfd9db8f 100644 (file)
--- a/include/wx/univ/theme.h
+++ b/include/wx/univ/theme.h
@@ -14,18 +14,17 @@
 #ifndef _WX_UNIV_THEME_H_
 #define _WX_UNIV_THEME_H_
 
-#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
-    #pragma interface "theme.h"
-#endif
+#include "wx/string.h"
 
 // ----------------------------------------------------------------------------
 // wxTheme
 // ----------------------------------------------------------------------------
 
-class WXDLLEXPORT wxRenderer;
+class WXDLLEXPORT wxArtProvider;
 class WXDLLEXPORT wxColourScheme;
+class WXDLLEXPORT wxInputConsumer;
 class WXDLLEXPORT wxInputHandler;
-class WXDLLEXPORT wxArtProvider;
+class WXDLLEXPORT wxRenderer;
 struct WXDLLEXPORT wxThemeInfo;
 
 class WXDLLEXPORT wxTheme
@@ -52,12 +51,13 @@ public:
     // get the renderer implementing all the control-drawing operations in
     // this theme
     virtual wxRenderer *GetRenderer() = 0;
-    
+
     // get the art provider to be used together with this theme
     virtual wxArtProvider *GetArtProvider() = 0;
 
-    // get the input handler of the given type
-    virtual wxInputHandler *GetInputHandler(const wxString& handlerType) = 0;
+    // get the input handler of the given type, forward to the standard one
+    virtual wxInputHandler *GetInputHandler(const wxString& handlerType,
+                                            wxInputConsumer *consumer) = 0;
 
     // get the colour scheme for the control with this name
     virtual wxColourScheme *GetColourScheme() = 0;
@@ -76,6 +76,34 @@ private:
     friend struct WXDLLEXPORT wxThemeInfo;
 };
 
+// ----------------------------------------------------------------------------
+// wxDelegateTheme: it is impossible to inherit from any of standard
+// themes as their declarations are in private code, but you can use this
+// class to override only some of their functions - all the other ones
+// will be left to the original theme
+// ----------------------------------------------------------------------------
+
+class wxDelegateTheme : public wxTheme
+{
+public:
+    wxDelegateTheme(const wxChar *theme);
+    virtual ~wxDelegateTheme();
+
+    virtual wxRenderer *GetRenderer();
+    virtual wxArtProvider *GetArtProvider();
+    virtual wxInputHandler *GetInputHandler(const wxString& control,
+                                            wxInputConsumer *consumer);
+    virtual wxColourScheme *GetColourScheme();
+
+protected:
+    // gets or creates theme and sets m_theme to point to it,
+    // returns true on success
+    bool GetOrCreateTheme();
+
+    wxString    m_themeName;
+    wxTheme    *m_theme;
+};
+
 // ----------------------------------------------------------------------------
 // dynamic theme creation helpers
 // ----------------------------------------------------------------------------
@@ -105,7 +133,11 @@ struct WXDLLEXPORT wxThemeInfo
 // without it, an over optimizing linker may discard the object module
 // containing the theme implementation entirely
 #define WX_USE_THEME(themename)                                             \
-    WXDLLEXPORT_DATA(extern bool) wxThemeUse##themename;                    \
+    /* this indirection makes it possible to pass macro as the argument */  \
+    WX_USE_THEME_IMPL(themename)
+
+#define WX_USE_THEME_IMPL(themename)                                        \
+    extern WXDLLEXPORT_DATA(bool) wxThemeUse##themename;                    \
     static struct wxThemeUserFor##themename                                 \
     {                                                                       \
         wxThemeUserFor##themename() { wxThemeUse##themename = true; }       \
@@ -126,5 +158,45 @@ struct WXDLLEXPORT wxThemeInfo
     wxThemeInfo classname::ms_info##themename(wxCtorFor##themename,         \
                                               wxT( #themename ), themedesc)
 
-#endif // _WX_UNIV_THEME_H_
+// ----------------------------------------------------------------------------
+// determine default theme
+// ----------------------------------------------------------------------------
+
+#if wxUSE_ALL_THEMES
+    #undef  wxUSE_THEME_WIN32
+    #define wxUSE_THEME_WIN32  1
+    #undef  wxUSE_THEME_GTK
+    #define wxUSE_THEME_GTK    1
+    #undef  wxUSE_THEME_MONO
+    #define wxUSE_THEME_MONO   1
+    #undef  wxUSE_THEME_METAL
+    #define wxUSE_THEME_METAL  1
+#endif // wxUSE_ALL_THEMES
+
+// determine the default theme to use:
+#if defined(__WXGTK__) && wxUSE_THEME_GTK
+    #define wxUNIV_DEFAULT_THEME gtk
+#elif defined(__WXDFB__) && wxUSE_THEME_MONO
+    // use mono theme for DirectFB port because it cannot correctly
+    // render neither win32 nor gtk themes yet:
+    #define wxUNIV_DEFAULT_THEME mono
+#endif
 
+// if no theme was picked, get any theme compiled in (sorted by
+// quality/completeness of the theme):
+#ifndef wxUNIV_DEFAULT_THEME
+    #if wxUSE_THEME_WIN32
+        #define wxUNIV_DEFAULT_THEME win32
+    #elif wxUSE_THEME_GTK
+        #define wxUNIV_DEFAULT_THEME gtk
+    #elif wxUSE_THEME_MONO
+        #define wxUNIV_DEFAULT_THEME mono
+    #endif
+    // If nothing matches, no themes are compiled and the app must provide
+    // some theme itself
+    // (note that wxUSE_THEME_METAL depends on win32 theme, so we don't have to
+    // try it)
+    //
+#endif // !wxUNIV_DEFAULT_THEME
+
+#endif // _WX_UNIV_THEME_H_