add FontManager, Font classes

Rakefile.rb

@@ -22,9 +22,9 @@ end
 
 task :gui => :library do
   base_env.clone(clone: :all) do |env|
-    env["CFLAGS"] += `sdl2-config --cflags`.split(" ")
+    env["CFLAGS"] += `sdl2-config --cflags`.split(" ") + `freetype-config --cflags`.split(" ")
-    env["CXXFLAGS"] += `sdl2-config --cflags`.split(" ")
+    env["CXXFLAGS"] += `sdl2-config --cflags`.split(" ") + `freetype-config --cflags`.split(" ")
-    env["LDCMD"] += `sdl2-config --libs`.split(" ")
+    env["LDCMD"] += `sdl2-config --libs`.split(" ") + `freetype-config --libs`.split(" ")
     env["LIBS"] += ["dl", "GL"]
     env.Program("^/jes", Dir["src/gui/**/*.{cc,c}"])
   end

src/gui/Font.cc

@@ -0,0 +1,18 @@
+#include "Font.h"
+#include <iostream>
+
+namespace jes
+{
+    bool Font::load(FT_Library ft, const char * fname, size_t size)
+    {
+        if (FT_New_Face(ft, fname, 0, &m_face) != 0)
+        {
+            std::cerr << "Could not load font " << fname << std::endl;
+            return false;
+        }
+
+        FT_Set_Pixel_Sizes(m_face, 0, size);
+
+        return true;
+    }
+}

src/gui/Font.h

@@ -0,0 +1,21 @@
+#ifndef JES_FONT_H
+#define JES_FONT_H
+
+#include "jes/Ref.h"
+#include <ft2build.h>
+#include FT_FREETYPE_H
+
+namespace jes
+{
+    class Font
+    {
+    public:
+        bool load(FT_Library ft, const char * fname, size_t size);
+    protected:
+        FT_Face m_face;
+    };
+
+    typedef Ref<Font> FontRef;
+}
+
+#endif

src/gui/FontManager.cc

@@ -0,0 +1,14 @@
+#include "FontManager.h"
+#include <iostream>
+
+namespace jes
+{
+    FontManager::FontManager()
+    {
+        if (FT_Init_FreeType(&m_ft) != 0)
+        {
+            std::cerr << "Error initializing FreeType" << std::endl;
+            return;
+        }
+    }
+}

src/gui/FontManager.h

@@ -0,0 +1,21 @@
+#ifndef JES_FONTMANAGER_H
+#define JES_FONTMANAGER_H
+
+#include "jes/Ref.h"
+#include <ft2build.h>
+#include FT_FREETYPE_H
+
+namespace jes
+{
+    class FontManager
+    {
+    public:
+        FontManager();
+    protected:
+        FT_Library m_ft;
+    };
+
+    typedef Ref<FontManager> FontManagerRef;
+}
+
+#endif