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

4 files changed, 50 insertions, 12 deletions

diff --git a/tikzit/src/common/ColorRGB.h b/tikzit/src/common/ColorRGB.h
index 412a1f6..607ba64 100644
--- a/tikzit/src/common/ColorRGB.h
+++ b/tikzit/src/common/ColorRGB.h
@@ -36,6 +36,8 @@
 @property (assign) float greenFloat;
 @property (assign) float blueFloat;
 
+@property (readonly) NSString *name;
+
 - (RColor)rColor;
 - (RColor)rColorWithAlpha:(CGFloat)alpha;
 
@@ -48,8 +50,6 @@
 - (id)initWithFloatRed:(float)r green:(float)g blue:(float)b;
 - (id)initWithRColor:(RColor)color;
 
-- (NSString*)name;
-
 - (void)setToClosestHashed;
 
 + (ColorRGB*)colorWithRed:(unsigned short)r green:(unsigned short)g blue:(unsigned short)b;
diff --git a/tikzit/src/common/ColorRGB.m b/tikzit/src/common/ColorRGB.m
index 673a88d..74d1c55 100644
--- a/tikzit/src/common/ColorRGB.m
+++ b/tikzit/src/common/ColorRGB.m
@@ -183,19 +183,22 @@ static NSMapTable *colorHash = nil;
 
 @implementation ColorRGB
 
-- (unsigned short)red { return red; }
-- (void)setRed:(unsigned short)r { red = r; }
-- (unsigned short)green { return green; }
-- (void)setGreen:(unsigned short)g { green = g; }
-- (unsigned short)blue { return blue; }
-- (void)setBlue:(unsigned short)b { blue = b; }
++ (void)initialize {
+	[self setKeys:[NSArray arrayWithObject:@"red"] triggerChangeNotificationsForDependentKey:@"redFloat"];
+	[self setKeys:[NSArray arrayWithObject:@"green"] triggerChangeNotificationsForDependentKey:@"greenFloat"];
+	[self setKeys:[NSArray arrayWithObject:@"blue"] triggerChangeNotificationsForDependentKey:@"blueFloat"];
+	[self setKeys:[NSArray arrayWithObjects:@"red", @"green", @"blue", nil]
+          triggerChangeNotificationsForDependentKey:@"name"];
+}
+
+@synthesize red, green, blue;
 
 - (float)redFloat { return ((float)red)/255.0f; }
-- (void)setRedFloat:(float)r { red = round(r*255.0f); }
+- (void)setRedFloat:(float)r { [self setRed:round(r*255.0f)]; }
 - (float)greenFloat { return ((float)green)/255.0f; }
-- (void)setGreenFloat:(float)g { green = round(g*255.0f); }
+- (void)setGreenFloat:(float)g { [self setGreen:round(g*255.0f)]; }
 - (float)blueFloat { return ((float)blue)/255.0f; }
-- (void)setBlueFloat:(float)b { blue = round(b*255.0f); }
+- (void)setBlueFloat:(float)b { [self setBlue:round(b*255.0f)]; }
 
 - (int)hash {
 	return (red<<4) + (green<<2) + blue;
@@ -230,7 +233,8 @@ static NSMapTable *colorHash = nil;
 }
 
 - (NSString*)name {
-	if (colorHash == nil) [ColorRGB makeColorHash];
+	if (colorHash == nil)
+		[ColorRGB makeColorHash];
 	return [colorHash objectForKey:self];
 }
 
diff --git a/tikzit/src/common/EdgeStyle.m b/tikzit/src/common/EdgeStyle.m
index a9dbc9f..da669e3 100644
--- a/tikzit/src/common/EdgeStyle.m
+++ b/tikzit/src/common/EdgeStyle.m
@@ -25,6 +25,17 @@
 
 @implementation EdgeStyle
 
++ (void)initialize {
+	[self setKeys:[NSArray arrayWithObjects:
+				@"tailStyle",
+				@"headStyle",
+				@"decorationStyle",
+				@"thickness",
+				@"name",
+				nil]
+          triggerChangeNotificationsForDependentKey:@"tikz"];
+}
+
 - (id)initWithName:(NSString*)nm {
     self = [super initWithNotificationName:@"EdgeStylePropertyChanged"];
 
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 {