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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
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