WIP: Moved sources int src/, separated most of the source code from Perl.

The XS was left only for the unit / integration tests, and it links
libslic3r only. No wxWidgets are allowed to be used from Perl starting
from now.

src/png/color.hpp

@@ -0,0 +1,65 @@
+/*
+ * Copyright (C) 2007,2008   Alex Shulgin
+ *
+ * This file is part of png++ the C++ wrapper for libpng.  PNG++ is free
+ * software; the exact copying conditions are as follows:
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * 3. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
+ * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
+ * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+#ifndef PNGPP_COLOR_HPP_INCLUDED
+#define PNGPP_COLOR_HPP_INCLUDED
+
+#include "types.hpp"
+
+namespace png
+{
+
+    /**
+     * \brief PNG color struct extension.  Adds constructors. 
+     */
+    struct color
+        : png_color
+    {
+        explicit color(byte r = 0, byte g = 0, byte b = 0)
+        {
+            this->red = r;
+            this->green = g;
+            this->blue = b;
+        }
+
+        /**
+         * \brief Initializes color with a copy of png_color object.
+         */
+        color(png_color const& other)
+        {
+            this->red = other.red;
+            this->green = other.green;
+            this->blue = other.blue;
+        }
+    };
+
+} // namespace png
+
+#endif // PNGPP_COLOR_HPP_INCLUDED