Allow a user to select which columns to display

PBGitHistoryController.h

@@ -25,7 +25,6 @@
 	PBGitCommit* webCommit;
 	PBGitCommit* rawCommit;
 	PBGitCommit* realCommit;
-	
 }
 
 @property (assign) int selectedTab;
@@ -46,4 +45,6 @@
 - (void) copyCommitInfo;
 
 - (BOOL) hasNonlinearPath;
+
+- (NSMenu *)tableColumnMenu;
 @end

PBGitHistoryController.m

@@ -39,7 +39,8 @@
 	// Set a sort descriptor for the subject column in the history list, as
 	// It can't be sorted by default (because it's bound to a PBGitCommit)
 	[[commitList tableColumnWithIdentifier:@"subject"] setSortDescriptorPrototype:[[NSSortDescriptor alloc] initWithKey:@"subject" ascending:YES]];
-
+	// Add a menu that allows a user to select which columns to view
+	[[commitList headerView] setMenu:[self tableColumnMenu]];
 	[super awakeFromNib];
 }
 
@@ -202,4 +203,19 @@
 	[super removeView];
 }
 
+- (NSMenu *)tableColumnMenu
+{
+	NSMenu *menu = [[NSMenu alloc] initWithTitle:@"Table columns menu"];
+	for (NSTableColumn *column in [commitList tableColumns]) {
+		NSMenuItem *item = [[NSMenuItem alloc] init];
+		[item setTitle:[[column headerCell] stringValue]];
+		[item bind:@"value"
+		  toObject:column
+	   withKeyPath:@"hidden"
+		   options:[NSDictionary dictionaryWithObject:@"NSNegateBoolean" forKey:NSValueTransformerNameBindingOption]];
+		[menu addItem:item];
+	}
+	return menu;
+}
+
 @end