GUI: Add too long string literal warning code to theme generation tool.

This has the same effect as clang's -Woverlength-strings warning of
string literals longer than C++ compilers are specified to work with.

1 files changed, 11 insertions, 1 deletions

diff --git a/gui/themes/scummtheme.py b/gui/themes/scummtheme.py
index 4c55fd79de..e8001f8bc6 100755
--- a/gui/themes/scummtheme.py
+++ b/gui/themes/scummtheme.py
@@ -37,6 +37,7 @@ def parseSTX(theme_file, def_file):
 	comm = re.compile("<!--(.*?)-->", re.DOTALL)
 	head = re.compile("<\?(.*?)\?>")
 
+	strlitcount = 0
 	output = ""
 	for line in theme_file:
 		output +=  line.rstrip("\r\n\t ").lstrip() + " \n"
@@ -48,7 +49,9 @@ def parseSTX(theme_file, def_file):
 
 	for line in output.splitlines():
 		if line and not line.isspace():
+			strlitcount += len(line)
 			def_file.write("\"" + line + "\"\n")
+	return strlitcount
 
 def buildDefTheme(themeName):
 	def_file = open("default.inc", "w")
@@ -57,16 +60,23 @@ def buildDefTheme(themeName):
 		print ("Cannot open default theme dir.")
 
 	def_file.write(""" "<?xml version = '1.0'?>"\n""")
+	strlitcount = 24
 
 	for filename in os.listdir(themeName):
 		filename = os.path.join(themeName, filename)
 		if os.path.isfile(filename) and filename.endswith(".stx"):
 			theme_file = open(filename, "r")
-			parseSTX(theme_file, def_file)
+			strlitcount += parseSTX(theme_file, def_file)
 			theme_file.close()
 
 	def_file.close()
 
+	if strlitcount > 65535:
+		print("WARNING: default.inc string literal is of length %d which exceeds the" % strlitcount)
+		print("         maximum length of 65536 that C++ compilers are required to support.")
+		print("         It is likely that bugs will occur dependent on compiler behaviour.")
+		print("         To avoid this, reduce the size of the theme.")
+
 def printUsage():
 	print ("===============================")
 	print ("ScummVM Theme Generation Script")