Make common code KVC compliant, and implement NSCopying where relevant

git-svn-id: https://tikzit.svn.sourceforge.net/svnroot/tikzit/trunk@420 7c02a99a-9b00-45e3-bf44-6f3dd7fddb64

1 files changed, 12 insertions, 5 deletions

diff --git a/tikzit/src/common/Grid.m b/tikzit/src/common/Grid.m
index 4fb2ef8..f597a4a 100644
--- a/tikzit/src/common/Grid.m
+++ b/tikzit/src/common/Grid.m
@@ -37,6 +37,18 @@
 	return self;
 }
 
+- (id) copyWithZone:(NSZone*)zone {
+	return [[Grid allocWithZone:zone]
+			initWithSpacing:spacing
+			   subdivisions:cellSubdivisions
+				transformer:transformer];
+}
+
+- (void) dealloc {
+	[transformer release];
+	[super dealloc];
+}
+
 - (int) cellSubdivisions {
 	return cellSubdivisions;
 }
@@ -169,11 +181,6 @@
 	[context restoreState];
 }
 
-- (void) dealloc {
-	[transformer release];
-	[super dealloc];
-}
-
 @end
 
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