Use KVO for listening to style changes in the selectors

git-svn-id: https://tikzit.svn.sourceforge.net/svnroot/tikzit/trunk@426 7c02a99a-9b00-45e3-bf44-6f3dd7fddb64

1 files changed, 23 insertions, 0 deletions

diff --git a/tikzit/src/common/NodeStyle.m b/tikzit/src/common/NodeStyle.m
index 8d8b83f..0794b6a 100644
--- a/tikzit/src/common/NodeStyle.m
+++ b/tikzit/src/common/NodeStyle.m
@@ -26,6 +26,29 @@
 
 @implementation NodeStyle
 
++ (void)initialize {
+	[self setKeys:[NSArray arrayWithObjects:
+				@"fillColorRGB.red",
+				@"fillColorRGB.blue",
+				@"fillColorRGB.green",
+				@"strokeColorRGB.red",
+				@"strokeColorRGB.blue",
+				@"strokeColorRGB.green",
+				@"strokeThickness",
+				@"shapeName",
+				@"name",
+				nil]
+          triggerChangeNotificationsForDependentKey:@"tikz"];
+	[self setKeys:[NSArray arrayWithObjects:
+				@"fillColorRGB.name",
+				nil]
+          triggerChangeNotificationsForDependentKey:@"fillColorIsKnown"];
+	[self setKeys:[NSArray arrayWithObjects:
+				@"strokeColorRGB.name",
+				nil]
+          triggerChangeNotificationsForDependentKey:@"strokeColorIsKnown"];
+}
+
 + (int) defaultStrokeThickness { return 1; }
 
 - (id)initWithName:(NSString*)nm {