Removed png as default mode.

Image format is now selected by file extension or magick().

CMakeLists.txt

@@ -1,6 +1,6 @@
 cmake_minimum_required (VERSION 3.2)
 project(identiconpp
-        VERSION 0.3.0
+        VERSION 0.3.1
         LANGUAGES CXX
 )
 

example.cpp

@@ -47,6 +47,8 @@ int main(int argc, char *argv[])
             });
         img = identicon.generate(digest, 500);
         img.write("identicon_example_ltr_asymmetric.png");
+        img.magick("GIF");
+        img.write("identicon_example_ltr_asymmetric.gif");
     }
 
     {
@@ -62,6 +64,7 @@ int main(int argc, char *argv[])
             });
         img = identicon.generate(digest, 500);
         img.write("identicon_example_sigil.png");
+        img.write("identicon_example_sigil.jpg");
     }
 
     return 0;

src/identiconpp.cpp

@@ -74,7 +74,6 @@ Magick::Image Identiconpp::generate(const string &digest, const uint16_t width)
     img.scale(Magick::Geometry(imgwidth, imgheight));
     img.borderColor(Magick::Color('#' + _background));
     img.border(Magick::Geometry(_padding[0], _padding[1]));
-    img.magick("png");
     return img;
 }
 

src/identiconpp.hpp

@@ -71,7 +71,7 @@ public:
      *  @param  digest  The pre-computed digest
      *  @param  width   The width of the image in pixels
      *
-     *  @return The image
+     *  @return The image as Magick::Image
      */
     Magick::Image generate(const string &digest, const uint16_t width = 100);