fix comparison of BYTE variable with -1 after last commit

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

diff --git a/include/wx/colour.h b/include/wx/colour.h
index afe6371475551745b7588cf3d6b626e353ef4f6a..b0296e860ed1d64088e535f72ddfcb5bd566d792 100644 (file)
--- a/include/wx/colour.h
+++ b/include/wx/colour.h
@@ -18,18 +18,21 @@
 
 class WXDLLIMPEXP_FWD_CORE wxColour;
 
-// the standard wxColour constructors;
-// this macro avoids to repeat these lines across all colour.h files, since
-// Set() is a virtual function and thus cannot be called by wxColourBase
-// constructors
+// A macro to define the standard wxColour constructors:
+//
+// It avoids the need to repeat these lines across all colour.h files, since
+// Set() is a virtual function and thus cannot be called by wxColourBase ctors
 #define DEFINE_STD_WXCOLOUR_CONSTRUCTORS                                      \
-    wxColour( ChannelType red, ChannelType green, ChannelType blue,           \
-              ChannelType alpha = wxALPHA_OPAQUE )                            \
-        { Set(red, green, blue, alpha); }                                     \
-    wxColour( unsigned long colRGB ) { Set(colRGB); }                         \
-    wxColour(const wxString& colourName) { Set(colourName); }                 \
-    wxColour(const char *colourName) { Set(colourName); }                     \
-    wxColour(const wchar_t *colourName) { Set(colourName); }
+    wxColour() { Init(); }                                                    \
+    wxColour(ChannelType red,                                                 \
+             ChannelType green,                                               \
+             ChannelType blue,                                                \
+             ChannelType alpha = wxALPHA_OPAQUE)                              \
+        { Init(); Set(red, green, blue, alpha); }                             \
+    wxColour(unsigned long colRGB) { Init(); Set(colRGB    ); }               \
+    wxColour(const wxString& colourName) { Init(); Set(colourName); }         \
+    wxColour(const char *colourName) { Init(); Set(colourName); }             \
+    wxColour(const wchar_t *colourName) { Init(); Set(colourName); }
 
 
 // flags for wxColour -> wxString conversion (see wxColour::GetAsString)
@@ -55,7 +58,18 @@ DECLARE_VARIANT_OBJECT_EXPORTED(wxColour,WXDLLEXPORT)
 //               code redundancy in all native wxColour implementations
 //-----------------------------------------------------------------------------
 
-class WXDLLEXPORT wxColourBase : public wxGDIObject
+#if defined( __WXMAC__ ) || defined( __WXMSW__ )
+#define wxCOLOUR_IS_GDIOBJECT 0
+#else
+#define wxCOLOUR_IS_GDIOBJECT 1
+#endif
+
+class WXDLLEXPORT wxColourBase : public 
+#if wxCOLOUR_IS_GDIOBJECT
+    wxGDIObject
+#else
+    wxObject
+#endif
 {
 public:
     // type of a single colour component
@@ -92,9 +106,6 @@ public:
     // accessors
     // ---------
 
-    virtual bool Ok() const { return IsOk(); }
-    virtual bool IsOk() const = 0;
-
     virtual ChannelType Red() const = 0;
     virtual ChannelType Green() const = 0;
     virtual ChannelType Blue() const = 0;
@@ -104,7 +115,13 @@ public:
     // implemented in colourcmn.cpp
     virtual wxString GetAsString(long flags = wxC2S_NAME | wxC2S_CSS_SYNTAX) const;
 
-
+#if !wxCOLOUR_IS_GDIOBJECT
+    virtual bool IsOk() const= 0;
+    
+    // older version, for backwards compatibility only (but not deprecated
+    // because it's still widely used)
+    bool Ok() const { return IsOk(); }
+#endif
 
     // old, deprecated
     // ---------------
@@ -115,10 +132,33 @@ public:
 #endif
 
 protected:
+    // Some ports need Init() and while we don't, provide a stub so that the
+    // ports which don't need it are not forced to define it
+    void Init() { }
+
     virtual void
     InitRGBA(ChannelType r, ChannelType g, ChannelType b, ChannelType a) = 0;
 
     virtual bool FromString(const wxString& s);
+
+#if wxCOLOUR_IS_GDIOBJECT
+    // wxColour doesn't use reference counted data (at least not in all ports)
+    // so provide stubs for the functions which need to be defined if we do use
+    // them
+    virtual wxGDIRefData *CreateGDIRefData() const
+    {
+        wxFAIL_MSG( "must be overridden if used" );
+
+        return NULL;
+    }
+
+    virtual wxGDIRefData *CloneGDIRefData(const wxGDIRefData *WXUNUSED(data)) const
+    {
+        wxFAIL_MSG( "must be overridden if used" );
+
+        return NULL;
+    }
+#endif
 };