From ecad1a1f90030035190f8098b5c4cd663f23a266 Mon Sep 17 00:00:00 2001
From: Robert Sesek <rsesek@bluestatic.org>
Date: Sun, 9 Mar 2008 14:37:46 -0400
Subject: [PATCH] We now highlight the break'd line

* Source/BSSourceView.h: New prop-ivar markedLine
* Source/BSSourceView.m: ditto
* Source/BSSourceViewTextView.m:
([BSSourceViewTextView drawRect:]): Highlight the line
* Source/DebuggerWindowContrller.m:
([DebuggerWindowController updateSourceViewer]): Call [sourceViewer setMarkedLine:]
---
 Source/BSSourceView.h             |  3 +++
 Source/BSSourceView.m             |  2 +-
 Source/BSSourceViewTextView.m     | 19 +++++++++++++++++++
 Source/DebuggerWindowController.m |  4 +++-
 4 files changed, 26 insertions(+), 2 deletions(-)

diff --git a/Source/BSSourceView.h b/Source/BSSourceView.h
index 03a306c..28193f5 100644
--- a/Source/BSSourceView.h
+++ b/Source/BSSourceView.h
@@ -23,11 +23,14 @@
 	BSLineNumberView *numberView;
 	BSSourceViewTextView *textView;
 	NSScrollView *scrollView;
+	
+	int markedLine;
 }
 
 @property(readwrite, assign) BSLineNumberView *numberView;
 @property(readwrite, assign) BSSourceViewTextView *textView;
 @property(readwrite, assign) NSScrollView *scrollView;
+@property(readwrite, assign) int markedLine;
 
 - (void)scrollToLine:(int)line;
 
diff --git a/Source/BSSourceView.m b/Source/BSSourceView.m
index 30214fe..a3278c2 100644
--- a/Source/BSSourceView.m
+++ b/Source/BSSourceView.m
@@ -22,7 +22,7 @@
 
 @implementation BSSourceView
 
-@synthesize numberView, textView, scrollView;
+@synthesize numberView, textView, scrollView, markedLine;
 
 /**
  * Initializes the source view with the path of a file
diff --git a/Source/BSSourceViewTextView.m b/Source/BSSourceViewTextView.m
index 76d5a85..15964b5 100644
--- a/Source/BSSourceViewTextView.m
+++ b/Source/BSSourceViewTextView.m
@@ -27,6 +27,25 @@
 - (void)drawRect:(NSRect)rect
 {
 	[super drawRect:rect];
+	
+	unsigned i = 0, line = 1;
+	while (i < [[self layoutManager] numberOfGlyphs])
+	{
+		NSRange fragRange;
+		NSRect fragRect = [self convertRect:[[self layoutManager] lineFragmentRectForGlyphAtIndex:i effectiveRange:&fragRange] fromView:self];
+		fragRect.origin.x = rect.origin.x; // horizontal scrolling matters not
+		
+		if ([sourceView markedLine] == line)
+		{
+			[[[NSColor redColor] colorWithAlphaComponent:0.25] set];
+			[NSBezierPath fillRect:fragRect];
+			break;
+		}
+		
+		i += fragRange.length;
+		line++;
+	}
+	
 	[[sourceView numberView] setNeedsDisplay:YES];
 }
 
diff --git a/Source/DebuggerWindowController.m b/Source/DebuggerWindowController.m
index cca867e..4806ce9 100644
--- a/Source/DebuggerWindowController.m
+++ b/Source/DebuggerWindowController.m
@@ -219,7 +219,9 @@
 	NSString *text = [NSString stringWithContentsOfFile:filename];
 	[[sourceViewer textView] setString:text];
 	
-	[sourceViewer scrollToLine:[[[stack objectAtIndex:selection] valueForKey:@"lineno"] intValue]];
+	int line = [[[stack objectAtIndex:selection] valueForKey:@"lineno"] intValue];
+	[sourceViewer setMarkedLine:line];
+	[sourceViewer scrollToLine:line];
 	
 	// make sure the font stays Monaco
 	//[sourceViewer setFont:[NSFont fontWithName:@"Monaco" size:10.0]];
-- 
2.22.5