UIView+CommonDrawing.h

//
//  UIView+CommonDrawing.h
//  Contacts Plus
//
//  Created by Tony Arnold on 4/08/10.
//  Copyright 2010 The CocoaBots. All rights reserved.
//

#import <Foundation/Foundation.h>


@interface UIView (CommonDrawing)

+(void)drawSelectionGradientWithBounds:(CGRect)bounds intoContext:(CGContextRef)context;

@end

UIView+CommonDrawing.m

//
// UIView+CommonDrawing.m
// Contacts Plus
//
// Created by Tony Arnold on 4/08/10.
// Copyright 2010 The CocoaBots. All rights reserved.
//

#import "UIView+CommonDrawing.h"
#import <QuartzCore/QuartzCore.h>


@implementation UIView (CommonDrawing)

+ (void)drawSelectionGradientWithBounds:(CGRect)gradientBounds intoContext:(CGContextRef)context {
	if (CGRectEqualToRect(gradientBounds, CGRectZero) || (context == NULL)) {
		return;
	}

	CGContextSaveGState(context);

	// Draw a highlight
	size_t  num_locations = 2;
	CGFloat locations[2]  = { 0.0, 1.0 };
	CGFloat components[8] = { 0.021, 0.548, 0.962, 1.000, 0.008, 0.364, 0.900, 1.000 };

	CGColorSpaceRef rgbColorspace     = CGColorSpaceCreateDeviceRGB();
	CGGradientRef   selectionGradient = CGGradientCreateWithColorComponents(rgbColorspace, components, locations, num_locations);

	CGPoint startPoint = CGPointMake(CGRectGetMidX(gradientBounds), CGRectGetMinY(gradientBounds));
	CGPoint endPoint   = CGPointMake(CGRectGetMidX(gradientBounds), CGRectGetMaxY(gradientBounds));

	CGContextDrawLinearGradient(context, selectionGradient, startPoint, endPoint, 0);

	CGGradientRelease(selectionGradient);
	CGColorSpaceRelease(rgbColorspace);

	CGContextRestoreGState(context);
}

@end