GLK: Constifying attribute, width calc methods

1 files changed, 5 insertions, 5 deletions

diff --git a/engines/glk/windows.h b/engines/glk/windows.h
index c905556f9e..c917d2f04b 100644
--- a/engines/glk/windows.h
+++ b/engines/glk/windows.h
@@ -328,7 +328,7 @@ struct Attributes {
 	/**
 	 * Equality comparison
 	 */
-	bool operator==(const Attributes &src) {
+	bool operator==(const Attributes &src) const {
 		return fgset == src.fgset && bgset == src.bgset && reverse == src.reverse
 			   && style == src.style && fgcolor == src.fgcolor && bgcolor == src.bgcolor
 			   && hyper == src.hyper;
@@ -336,7 +336,7 @@ struct Attributes {
 	/**
 	 * Inequality comparison
 	 */
-	bool operator!=(const Attributes &src) {
+	bool operator!=(const Attributes &src) const {
 		return fgset != src.fgset || bgset != src.bgset || reverse != src.reverse
 			   || style != src.style || fgcolor != src.fgcolor || bgcolor != src.bgcolor
 			   || hyper != src.hyper;
@@ -345,17 +345,17 @@ struct Attributes {
 	/**
 	 * Return the background color for the current font style
 	 */
-	byte *attrBg(WindowStyle *styles);
+	const byte *attrBg(const WindowStyle *styles);
 
 	/**
 	 * Return the foreground color for the current font style
 	 */
-	byte *attrFg(WindowStyle *styles);
+	const byte *attrFg(const WindowStyle *styles);
 
 	/**
 	 * Get the font for the current font style
 	 */
-	FACES attrFont(WindowStyle *styles) const {
+	FACES attrFont(const WindowStyle *styles) const {
 		return styles[style].font;
 	}
 };