add missing files

src/util/color.cc

@@ -0,0 +1,17 @@
+#include "util/color.h"
+#include "util/misc.h"
+
+namespace pdf2htmlEX {
+
+using std::ostream;
+
+ostream & operator << (ostream & out, const Color & color)
+{
+    if(color.transparent)
+        out << "transparent";
+    else
+        out << color.rgb;
+    return out;
+}
+
+} // namespace pdf2htmlEX

src/util/color.h

@@ -0,0 +1,32 @@
+/*
+ * Header file for Color 
+ * Copyright (C) 2013 Lu Wang <coolwanglu@gmail.com>
+ */
+
+#ifndef COLOR_H__
+#define COLOR_H__
+
+#include <ostream>
+
+#include <GfxState.h>
+
+namespace pdf2htmlEX {
+
+struct Color
+{
+    bool transparent;
+    GfxRGB rgb;
+    bool operator == (const Color & c) const {
+        if(transparent != c.transparent)
+            return false;
+        if(transparent)
+            return true;
+        return ((rgb.r == c.rgb.r) && (rgb.g == c.rgb.g) && (rgb.b == c.rgb.b));
+    }
+};
+
+std::ostream & operator << (std::ostream & out, const Color & color);
+
+} // namespace pdf2htmlEX
+
+#endif // COLOR_H__