Added const where possible.

1 files changed, 5 insertions, 5 deletions

diff --git a/src/XPM.cxx b/src/XPM.cxx
index 646981a80..0e5795cc5 100644
--- a/src/XPM.cxx
+++ b/src/XPM.cxx
@@ -117,24 +117,24 @@ void XPM::Init(const char *const *linesForm) {
 
 	for (int y=0; y<height; y++) {
 		const char *lform = linesForm[y+nColours+1];
-		size_t len = MeasureLength(lform);
+		const size_t len = MeasureLength(lform);
 		for (size_t x = 0; x<len; x++)
 			pixels[y * width + x] = static_cast<unsigned char>(lform[x]);
 	}
 }
 
-void XPM::Draw(Surface *surface, PRectangle &rc) {
+void XPM::Draw(Surface *surface, const PRectangle &rc) {
 	if (pixels.empty()) {
 		return;
 	}
 	// Centre the pixmap
-	int startY = static_cast<int>(rc.top + (rc.Height() - height) / 2);
-	int startX = static_cast<int>(rc.left + (rc.Width() - width) / 2);
+	const int startY = static_cast<int>(rc.top + (rc.Height() - height) / 2);
+	const int startX = static_cast<int>(rc.left + (rc.Width() - width) / 2);
 	for (int y=0; y<height; y++) {
 		int prevCode = 0;
 		int xStartRun = 0;
 		for (int x=0; x<width; x++) {
-			int code = pixels[y * width + x];
+			const int code = pixels[y * width + x];
 			if (code != prevCode) {
 				FillRun(surface, prevCode, startX + xStartRun, startY + y, startX + x);
 				xStartRun = x;