X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/84006e65e80116a91514523b9d15344d4bbcbf4a..08469b1f18dbf44abd5400ddf83a7c0e1bd65af1:/include/wx/image.h

diff --git a/include/wx/image.h b/include/wx/image.h
index e685022009..aa801035f6 100644
--- a/include/wx/image.h
+++ b/include/wx/image.h
@@ -160,7 +160,7 @@ public:
     public:
       RGBValue(unsigned char r=0, unsigned char g=0, unsigned char b=0)
         : red(r), green(g), blue(b) {}
-        unsigned char red;  
+        unsigned char red;
         unsigned char green;
         unsigned char blue;
     };
@@ -171,7 +171,7 @@ public:
     public:
         HSVValue(double h=0.0, double s=0.0, double v=0.0)
             : hue(h), saturation(s), value(v) {}
-        double hue;  
+        double hue;
         double saturation;
         double value;
     };
@@ -190,9 +190,6 @@ public:
     wxImage( wxInputStream& stream, const wxString& mimetype, int index = -1 );
 #endif // wxUSE_STREAMS
 
-    wxImage( const wxImage& image );
-    wxImage( const wxImage* image );
-
     bool Create( int width, int height, bool clear = true );
     bool Create( int width, int height, unsigned char* data, bool static_data = false );
     bool Create( int width, int height, unsigned char* data, unsigned char* alpha, bool static_data = false );
@@ -241,6 +238,10 @@ public:
     void Replace( unsigned char r1, unsigned char g1, unsigned char b1,
                   unsigned char r2, unsigned char g2, unsigned char b2 );
 
+    // Convert to greyscale image. Uses the luminance component (Y) of the image.
+    // The luma value (YUV) is calculated using (R * lr) + (G * lg) + (B * lb), defaults to ITU-T BT.601
+    wxImage ConvertToGreyscale( double lr = 0.299, double lg = 0.587, double lb = 0.114 ) const;
+
     // convert to monochrome image (<r,g,b> will be replaced by white,
     // everything else by black)
     wxImage ConvertToMono( unsigned char r, unsigned char g, unsigned char b ) const;
@@ -360,13 +361,6 @@ public:
     // -1.0..1.0 where -1.0 is -360 degrees and 1.0 is 360 degrees
     void RotateHue(double angle);
 
-    wxImage& operator = (const wxImage& image)
-    {
-        if ( (*this) != image )
-            Ref(image);
-        return *this;
-    }
-
     bool operator == (const wxImage& image) const
         { return m_refData == image.m_refData; }
     bool operator != (const wxImage& image) const