fixed Cygwin compilation (there's no _get_osfhandle)

[wxWidgets.git] / include / wx / renderer.h

diff --git a/include/wx/renderer.h b/include/wx/renderer.h
index fb831c39b5e4f5ffa079f866391ead6aec20f72b..f8c8c14d8a24a0ff26393f58b7a295bf05a2a106 100644 (file)
--- a/include/wx/renderer.h
+++ b/include/wx/renderer.h
@@ -5,12 +5,12 @@
 // Modified by:
 // Created:     20.07.2003
 // RCS-ID:      $Id$
 // Modified by:
 // Created:     20.07.2003
 // RCS-ID:      $Id$

-// Copyright:   (c) 2003 Vadim Zeitlin <vadim@wxwindows.org>
+// Copyright:   (c) 2003 Vadim Zeitlin <vadim@wxwidgets.org>

 // Licence:     wxWindows licence
 ///////////////////////////////////////////////////////////////////////////////
 
 /*
 // Licence:     wxWindows licence
 ///////////////////////////////////////////////////////////////////////////////
 
 /*

-   Renderers are used in wxWindows for two similar but different things:
+   Renderers are used in wxWidgets for two similar but different things:

     (a) wxUniversal uses them to draw everything, i.e. all the control
     (b) all the native ports use them to draw generic controls only
 
     (a) wxUniversal uses them to draw everything, i.e. all the control
     (b) all the native ports use them to draw generic controls only
 


@@ -54,6 +54,7 @@ enum
     wxCONTROL_SELECTED   = 0x00000020,  // selected item in e.g. listbox
     wxCONTROL_CHECKED    = 0x00000040,  // (check/radio button) is checked
     wxCONTROL_CHECKABLE  = 0x00000080,  // (menu) item can be checked
     wxCONTROL_SELECTED   = 0x00000020,  // selected item in e.g. listbox
     wxCONTROL_CHECKED    = 0x00000040,  // (check/radio button) is checked
     wxCONTROL_CHECKABLE  = 0x00000080,  // (menu) item can be checked

+    wxCONTROL_UNDETERMINED = wxCONTROL_CHECKABLE, // (check) undetermined state

 
     wxCONTROL_FLAGS_MASK = 0x000000ff,
 
 
     wxCONTROL_FLAGS_MASK = 0x000000ff,
 


@@ -85,6 +86,37 @@ struct WXDLLEXPORT wxSplitterRenderParams
     const bool isHotSensitive;
 };
 
     const bool isHotSensitive;
 };
 

+// wxRendererNative interface version
+struct WXDLLEXPORT wxRendererVersion
+{
+    wxRendererVersion(int version_, int age_) : version(version_), age(age_) { }
+
+    // default copy ctor, assignment operator and dtor are ok
+
+    // the current version and age of wxRendererNative interface: different
+    // versions are incompatible (in both ways) while the ages inside the same
+    // version are upwards compatible, i.e. the version of the renderer must
+    // match the version of the main program exactly while the age may be
+    // highergreater or equal to it
+    //
+    // NB: don't forget to increment age after adding any new virtual function!
+    enum
+    {
+        Current_Version = 1,
+        Current_Age = 5
+    };
+
+
+    // check if the given version is compatible with the current one
+    static bool IsCompatible(const wxRendererVersion& ver)
+    {
+        return ver.version == Current_Version && ver.age >= Current_Age;
+    }
+
+    const int version;
+    const int age;
+};
+

 // ----------------------------------------------------------------------------
 // wxRendererNative: abstracts drawing methods needed by the native controls
 // ----------------------------------------------------------------------------
 // ----------------------------------------------------------------------------
 // wxRendererNative: abstracts drawing methods needed by the native controls
 // ----------------------------------------------------------------------------


@@ -92,8 +124,6 @@ struct WXDLLEXPORT wxSplitterRenderParams
 class WXDLLEXPORT wxRendererNative
 {
 public:
 class WXDLLEXPORT wxRendererNative
 {
 public:

-    virtual ~wxRendererNative() { } // stop GCC warning
-

     // drawing functions
     // -----------------
 
     // drawing functions
     // -----------------
 


@@ -124,6 +154,14 @@ public:
                                   wxOrientation orient,
                                   int flags = 0) = 0;
 
                                   wxOrientation orient,
                                   int flags = 0) = 0;
 

+    // draw a combobox dropdown button
+    //
+    // flags may only use wxCONTROL_PRESSED
+    virtual void DrawComboBoxDropButton(wxWindow *win,
+                                        wxDC& dc,
+                                        const wxRect& rect,
+                                        int flags = 0) = 0;
+

 
     // geometry functions
     // ------------------
 
     // geometry functions
     // ------------------


@@ -144,6 +182,34 @@ public:
 
     // return the default (native) implementation for this platform
     static wxRendererNative& GetDefault();
 
     // return the default (native) implementation for this platform
     static wxRendererNative& GetDefault();

+
+
+    // changing the global renderer
+    // ----------------------------
+
+#if wxUSE_DYNLIB_CLASS
+    // load the renderer from the specified DLL, the returned pointer must be
+    // deleted by caller if not NULL when it is not used any more
+    static wxRendererNative *Load(const wxString& name);
+#endif // wxUSE_DYNLIB_CLASS
+
+    // set the renderer to use, passing NULL reverts to using the default
+    // renderer
+    //
+    // return the previous renderer used with Set() or NULL if none
+    static wxRendererNative *Set(wxRendererNative *renderer);
+
+
+    // miscellaneous stuff
+    // -------------------
+
+    // this function is used for version checking: Load() refuses to load any
+    // DLLs implementing an older or incompatible version; it should be
+    // implemented simply by returning wxRendererVersion::Current_XXX values
+    virtual wxRendererVersion GetVersion() const = 0;
+
+    // virtual dtor for any base class
+    virtual ~wxRendererNative();

 };
 
 // ----------------------------------------------------------------------------
 };
 
 // ----------------------------------------------------------------------------


@@ -187,10 +253,19 @@ public:
         { m_rendererNative.DrawSplitterSash(win, dc, size,
                                             position, orient, flags); }
 
         { m_rendererNative.DrawSplitterSash(win, dc, size,
                                             position, orient, flags); }
 

+    virtual void DrawComboBoxDropButton(wxWindow *win,
+                                        wxDC& dc,
+                                        const wxRect& rect,
+                                        int flags = 0)
+        { m_rendererNative.DrawComboBoxDropButton(win, dc, rect, flags); }
+

 
     virtual wxSplitterRenderParams GetSplitterParams(const wxWindow *win)
         { return m_rendererNative.GetSplitterParams(win); }
 
 
     virtual wxSplitterRenderParams GetSplitterParams(const wxWindow *win)
         { return m_rendererNative.GetSplitterParams(win); }
 

+    virtual wxRendererVersion GetVersion() const
+        { return m_rendererNative.GetVersion(); }
+

 protected:
     wxRendererNative& m_rendererNative;
 
 protected:
     wxRendererNative& m_rendererNative;