Start on Font module.

src/jes/gui/font.d

@@ -0,0 +1,63 @@
+module jes.gui.font;
+import std.string;
+
+struct CFont;
+
+struct CGlyph
+{
+    ubyte * bitmap;
+    int width;
+    int height;
+    int left;
+    int top;
+    int advance;
+}
+
+private extern(C) CGlyph * Font_LoadGlyph(CFont * font, uint char_code);
+private extern(C) void Font_FreeGlyph(CGlyph * glyph);
+private extern(C) CFont * Font_Load(const char * fname, int size);
+private extern(C) void Font_Free(CFont * font);
+
+class Font
+{
+    class Glyph
+    {
+        int advance;
+        void render()
+        {
+        }
+    }
+
+    CFont * font;
+
+    this(const char * fname, int size)
+    {
+        font = Font_Load(fname, size);
+        if (font == null)
+        {
+            throw new Exception("Could not load font");
+        }
+    }
+
+    this(string fname, int size)
+    {
+        this(fname.toStringz(), size);
+    }
+
+    ~this()
+    {
+        Font_Free(font);
+    }
+
+    uint next_power_of_2(uint n)
+    {
+        n--;
+        n |= n >> 1u;
+        n |= n >> 2u;
+        n |= n >> 4u;
+        n |= n >> 8u;
+        n |= n >> 16u;
+        n++;
+        return n;
+    }
+}