Move shaders to default theme and add shader_override related methods to Control class

scene/resources/default_theme/make_header.py

@@ -0,0 +1,72 @@
+
+import os;
+import glob;
+import string;
+
+
+#Generate include files
+
+f=open("theme_data.h","wb")
+
+f.write("// THIS FILE HAS BEEN AUTOGENERATED, DONT EDIT!!\n");
+
+f.write("\n\n");
+
+#Generate png image block
+
+pixmaps = glob.glob("*.png");
+
+pixmaps.sort();
+
+f.write("\n\n\n");
+
+for x in pixmaps:
+
+	var_str=x[:-4]+"_png";
+
+	f.write("static const unsigned char "+ var_str +"[]={\n");
+
+	pngf=open(x,"rb");
+
+	b=pngf.read(1);
+	while(len(b)==1):
+		f.write(hex(ord(b)))
+		b=pngf.read(1);
+		if (len(b)==1):
+			f.write(",")
+
+	f.write("\n};\n\n\n");
+	pngf.close();
+
+#Generate shaders block
+
+shaders = glob.glob("*.gsl")
+
+shaders.sort();
+
+f.write("\n\n\n");
+
+for x in shaders:
+
+	var_str=x[:-4]+"_shader_code";
+
+	f.write("static const char *"+ var_str +"=\n");
+
+	sf=open(x,"rb");
+
+
+	b=sf.readline();
+	while(b!=""):
+		if (b.endswith("\r\n")):
+			b=b[:-2]
+		if (b.endswith("\n")):
+			b=b[:-1]
+		f.write("			\""+b)
+		b=sf.readline();
+		if (b!=""):
+			f.write("\"\n")
+
+	f.write("\";\n\n\n");
+	sf.close();
+
+f.close();