Add a preference for showing/hiding and setting the location of the c…

…olumn guide in the commit message text view.

PBCommitMessageView.m

@@ -19,18 +19,20 @@ - (void)drawRect:(NSRect)aRect
 
 	// draw a vertical line after the given size (used as an indicator
 	// for the first line of the commit message)
-	float characterWidth = [@" " sizeWithAttributes:[self typingAttributes]].width;
-	float lineWidth = characterWidth * [PBGitDefaults commitMessageViewVerticalLineLength];
-
-    [[NSColor lightGrayColor] set];
-	// This depends upon the fact that NSTextView always redraws complete lines.
-	float padding = [[self textContainer] lineFragmentPadding];
-	NSRect line;
-	line.origin.x = padding + aRect.origin.x + lineWidth;
-    line.origin.y = aRect.origin.y;
-	line.size.width = 1;
-	line.size.height = aRect.size.height;
-	NSRectFill(line);
+    if ([PBGitDefaults commitMessageViewHasVerticalLine]) {
+        float characterWidth = [@" " sizeWithAttributes:[self typingAttributes]].width;
+        float lineWidth = characterWidth * [PBGitDefaults commitMessageViewVerticalLineLength];
+
+        [[NSColor lightGrayColor] set];
+        // This depends upon the fact that NSTextView always redraws complete lines.
+        float padding = [[self textContainer] lineFragmentPadding];
+        NSRect line;
+        line.origin.x = padding + aRect.origin.x + lineWidth;
+        line.origin.y = aRect.origin.y;
+        line.size.width = 1;
+        line.size.height = aRect.size.height;
+        NSRectFill(line);
+    }
 
 	[self setBackgroundColor:nil];
 	[super drawRect:aRect];

PBGitDefaults.h

@@ -12,6 +12,7 @@
 }
 
 + (int) commitMessageViewVerticalLineLength;
++ (BOOL) commitMessageViewHasVerticalLine;
 + (BOOL) isGistEnabled;
 + (BOOL) isGravatarEnabled;
 + (BOOL) confirmPublicGists;

PBGitDefaults.m

@@ -10,6 +10,7 @@
 
 #define kDefaultVerticalLineLength 50
 #define kCommitMessageViewVerticalLineLength @"PBCommitMessageViewVerticalLineLength"
+#define kCommitMessageViewHasVerticalLine @"PBCommitMessageViewHasVerticalLine"
 #define kEnableGist @"PBEnableGist"
 #define kEnableGravatar @"PBEnableGravatar"
 #define kConfirmPublicGists @"PBConfirmPublicGists"
@@ -28,6 +29,8 @@ + (void)initialize
 	NSMutableDictionary *defaultValues = [NSMutableDictionary dictionary];
 	[defaultValues setObject:[NSNumber numberWithInt:kDefaultVerticalLineLength]
                       forKey:kCommitMessageViewVerticalLineLength];
+    [defaultValues setObject:[NSNumber numberWithBool:YES]
+                      forKey:kCommitMessageViewHasVerticalLine];
 	[defaultValues setObject:[NSNumber numberWithBool:YES]
 			  forKey:kEnableGist];
 	[defaultValues setObject:[NSNumber numberWithBool:YES]
@@ -52,6 +55,11 @@ + (int) commitMessageViewVerticalLineLength
 	return [[NSUserDefaults standardUserDefaults] integerForKey:kCommitMessageViewVerticalLineLength];
 }
 
++ (BOOL) commitMessageViewHasVerticalLine
+{
+	return [[NSUserDefaults standardUserDefaults] boolForKey:kCommitMessageViewHasVerticalLine];
+}
+
 + (BOOL) isGistEnabled
 {
 	return [[NSUserDefaults standardUserDefaults] boolForKey:kEnableGist];