1 files changed, 106 insertions, 0 deletions
diff --git a/chrome/browser/cocoa/section_separator_view.mm b/chrome/browser/cocoa/section_separator_view.mm
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+++ b/chrome/browser/cocoa/section_separator_view.mm
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+// Copyright (c) 2010 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#import "chrome/browser/cocoa/section_separator_view.h"
+
+@interface SectionSeparatorView (PrivateMethods)
+- (void)drawGradientRect:(NSRect)rect;
+- (void)drawBaseLineRect:(NSRect)rect;
+- (void)drawTopLineRect:(NSRect)rect;
+@end
+
+@implementation SectionSeparatorView
+
+@synthesize showBaseLine = showBaseLine_;
+@synthesize baselineSeparatorColor = baselineSeparatorColor_;
+@synthesize showTopLine = showTopLine_;
+@synthesize toplineSeparatorColor = toplineSeparatorColor_;
+
+- (id)initWithFrame:(NSRect)frame {
+  self = [super initWithFrame:frame];
+  if (self) {
+    [self setShowBaseLine:YES];
+    [self setBaselineSeparatorColor:[NSColor grayColor]];
+    [self setShowTopLine:YES];
+    [self setToplineSeparatorColor:[NSColor lightGrayColor]];
+  }
+  return self;
+}
+
+- (void)dealloc {
+  [baselineSeparatorColor_ release];
+  [toplineSeparatorColor_ release];
+  [super dealloc];
+}
+
+- (void)drawRect:(NSRect)rect {
+  NSRect gradientBounds = [self bounds];
+  NSRect baselineRect = gradientBounds;
+  NSRect toplineRect = gradientBounds;
+  gradientBounds.size.height -= 1;
+  gradientBounds.origin.y += 1;
+  baselineRect.size.height = 1;
+  baselineRect.origin.y = 0;
+  toplineRect.size.height = 1;
+  toplineRect.origin.y = gradientBounds.size.height;
+  [self drawGradientRect:gradientBounds];
+  if ([self showBaseLine])
+    [self drawBaseLineRect:baselineRect];
+  if ([self showTopLine])
+    [self drawTopLineRect:toplineRect];
+}
+
+@end
+
+@implementation SectionSeparatorView (PrivateMethods)
+
+// This method draws the gradient fill of the "separator" bar.  The input
+// |rect| designates the bounds that will be filled with the the gradient.
+// The gradient has two stops, lighter gray blending to
+// darker gray, descending from the top of the |rect| to the bottom.
+- (void)drawGradientRect:(NSRect)rect {
+  // Compute start and end points where to draw the gradient.
+  CGPoint startPoint = CGPointMake(NSMinX(rect), NSMinY(rect));
+  CGPoint endPoint = CGPointMake(NSMinX(rect), NSMaxY(rect));
+
+  // Setup the context and colorspace.
+  CGContextRef context =
+      (CGContextRef)[[NSGraphicsContext currentContext] graphicsPort];
+  CGContextSaveGState(context);
+  CGColorSpaceRef colorspace =
+      CGColorSpaceCreateWithName(kCGColorSpaceGenericRGB);
+
+  // Create the gradient.
+  const size_t stopCount = 2;
+  CGFloat stops[stopCount] = { 0.0, 1.0 };
+  CGFloat components[8] = {
+      0.75, 0.75, 0.75, 1.0,   // start color
+      0.95, 0.95, 0.95, 1.0 }; // end color
+
+  CGGradientRef gradient = CGGradientCreateWithColorComponents(
+      colorspace, components, stops, stopCount);
+
+  CGContextClipToRect(context, *(CGRect*)&rect);
+  CGContextDrawLinearGradient(context, gradient, startPoint, endPoint, 0);
+
+  CGGradientRelease(gradient);
+  CGColorSpaceRelease(colorspace);
+  CGContextRestoreGState(context);
+}
+
+// Draws the base line of the separator bar using the |baselineSeparatorColor_|
+// designated color.
+- (void)drawBaseLineRect:(NSRect)rect {
+  [baselineSeparatorColor_ set];
+  NSFrameRect(rect);
+}
+
+// Draws the top line of the separator bar using the |toplineSeparatorColor_|
+// designated color.
+- (void)drawTopLineRect:(NSRect)rect {
+  [toplineSeparatorColor_ set];
+  NSFrameRect(rect);
+}
+
+@end