Make wxGCDC::GetGraphicsContext() const.

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

diff --git a/include/wx/colour.h b/include/wx/colour.h
index 6c731ef546bd04b83947cea6e402bc4f011c6865..cf19ba4838ead09f9dd46de2949dcec9a726ccc4 100644 (file)
--- a/include/wx/colour.h
+++ b/include/wx/colour.h
@@ -15,7 +15,6 @@
 #include "wx/defs.h"
 #include "wx/gdiobj.h"
 
-
 class WXDLLIMPEXP_FWD_CORE wxColour;
 
 // A macro to define the standard wxColour constructors:
@@ -36,14 +35,19 @@ class WXDLLIMPEXP_FWD_CORE wxColour;
 
 
 // flags for wxColour -> wxString conversion (see wxColour::GetAsString)
-#define wxC2S_NAME              1   // return colour name, when possible
-#define wxC2S_CSS_SYNTAX        2   // return colour in rgb(r,g,b) syntax
-#define wxC2S_HTML_SYNTAX       4   // return colour in #rrggbb syntax
-
+enum {
+    wxC2S_NAME             = 1,   // return colour name, when possible
+    wxC2S_CSS_SYNTAX       = 2,   // return colour in rgb(r,g,b) syntax
+    wxC2S_HTML_SYNTAX      = 4    // return colour in #rrggbb syntax
+};
 
 const unsigned char wxALPHA_TRANSPARENT = 0;
 const unsigned char wxALPHA_OPAQUE = 0xff;
 
+// a valid but fully transparent colour
+#define wxTransparentColour wxColour(0, 0, 0, wxALPHA_TRANSPARENT)
+#define wxTransparentColor wxTransparentColour
+
 // ----------------------------------------------------------------------------
 // wxVariant support
 // ----------------------------------------------------------------------------
@@ -148,11 +152,27 @@ public:
     bool Ok() const { return IsOk(); }
 #endif
 
+    // manipulation
+    // ------------
+
+    // These methods are static because they are mostly used
+    // within tight loops (where we don't want to instantiate wxColour's)
+
+    static void          MakeMono    (unsigned char* r, unsigned char* g, unsigned char* b, bool on);
+    static void          MakeDisabled(unsigned char* r, unsigned char* g, unsigned char* b, unsigned char brightness = 255);
+    static void          MakeGrey    (unsigned char* r, unsigned char* g, unsigned char* b); // integer version
+    static void          MakeGrey    (unsigned char* r, unsigned char* g, unsigned char* b,
+                                      double weight_r, double weight_g, double weight_b); // floating point version
+    static unsigned char AlphaBlend  (unsigned char fg, unsigned char bg, double alpha);
+    static void          ChangeLightness(unsigned char* r, unsigned char* g, unsigned char* b, int ialpha);
+
+    wxColour ChangeLightness(int ialpha) const;
+
     // old, deprecated
     // ---------------
 
 #if WXWIN_COMPATIBILITY_2_6
-    wxDEPRECATED( static wxColour CreateByName(const wxString& name) );
+    static wxDEPRECATED( wxColour CreateByName(const wxString& name) );
     wxDEPRECATED( void InitFromName(const wxString& col) );
 #endif