UI improvements

Makefile

@@ -3,7 +3,7 @@ OUTDIR = output
 CXXFLAGS += $(shell sdl2-config --cflags) -std=c++14 -Wall -g
 CFLAGS += $(shell sdl2-config --cflags)
 CPPFLAGS += -I. -I$(OUTDIR) \
-	    -Iimgui -Iglm -Iebcl/include \
+	    -Iimgui -Iglm -IIconFontCppHeaders -Iebcl/include \
 	    -DREAL_BUILD -DGLM_ENABLE_EXPERIMENTAL
 LIBS += $(shell sdl2-config --libs) -lGL -lGLEW -ldl \
 	$(LIBEBCL) -latomic
@@ -130,3 +130,14 @@ $(LIBEBCL):	ebcl-config
 
 $(PCH): externals.hh
 	$(CXX) $(CXXFLAGS) $(CPPFLAGS) -c -o $@ $<
+
+#-------------------------------------------------------------------------------
+
+$(OUTDIR)/window.o: window.cc $(OUTDIR)/font-awesome.inl
+
+$(OUTDIR)/font-awesome.inl: font-awesome/fonts/fontawesome-webfont.ttf $(OUTDIR)/font-to-c
+	$(OUTDIR)/font-to-c -base85 font-awesome/fonts/fontawesome-webfont.ttf \
+		FontAwesome_ >$@
+
+$(OUTDIR)/font-to-c: imgui/extra_fonts/binary_to_compressed_c.cpp
+	$(CXX) -o $@ $<