ZCMCommon.m File Reference

#import "ZCMCommon.h"
#import <UIKit/UIKit.h>

Include dependency graph for ZCMCommon.m:

Go to the source code of this file.

Functions
void	drawLinearGradient (CGContextRef context, CGRect rect, CGColorRef startColor, CGColorRef endColor)
CGRect	rectFor1PxStroke (CGRect rect)
void	draw1PxStroke (CGContextRef context, CGPoint startPoint, CGPoint endPoint, CGColorRef color)
void	drawGlossAndGradient (CGContextRef context, CGRect rect, CGColorRef startColor, CGColorRef endColor)
CGMutablePathRef	createArcPathFromBottomOfRect (CGRect rect, CGFloat arcHeight)

Function Documentation

createArcPathFromBottomOfRect()

CGMutablePathRef createArcPathFromBottomOfRect	(	CGRect	rect,
		CGFloat	arcHeight
	)

Definition at line 64 of file ZCMCommon.m.

{
    CGRect arcRect = CGRectMake(rect.origin.x, rect.origin.y + rect.size.height - arcHeight, rect.size.width, arcHeight);
    
    CGFloat arcRadius = (arcRect.size.height/2) + (pow(arcRect.size.width, 2) / (8*arcRect.size.height));
    CGPoint arcCenter = CGPointMake(arcRect.origin.x + arcRect.size.width/2, arcRect.origin.y + arcRadius);
    
    CGFloat angle = acos(arcRect.size.width / (2*arcRadius));
    CGFloat startAngle = radians(180) + angle;
    CGFloat endAngle = radians(360) - angle;
    
    CGMutablePathRef path = CGPathCreateMutable();
    CGPathAddArc(path, NULL, arcCenter.x, arcCenter.y, arcRadius, startAngle, endAngle, 0);
    CGPathAddLineToPoint(path, NULL, CGRectGetMaxX(rect), CGRectGetMinY(rect));
    CGPathAddLineToPoint(path, NULL, CGRectGetMinX(rect), CGRectGetMinY(rect));
    CGPathAddLineToPoint(path, NULL, CGRectGetMinX(rect), CGRectGetMaxY(rect));
    
    return path;
}

draw1PxStroke()

void draw1PxStroke	(	CGContextRef	context,
		CGPoint	startPoint,
		CGPoint	endPoint,
		CGColorRef	color
	)

Definition at line 40 of file ZCMCommon.m.

{
    CGContextSaveGState(context);
    CGContextSetLineCap(context, kCGLineCapSquare);
    CGContextSetStrokeColorWithColor(context, color);
    CGContextSetLineWidth(context, 1.0);
    CGContextMoveToPoint(context, startPoint.x + 0.5, startPoint.y + 0.5);
    CGContextAddLineToPoint(context, endPoint.x + 0.5, endPoint.y + 0.5);
    CGContextStrokePath(context);
    CGContextRestoreGState(context);
}

drawGlossAndGradient()

void drawGlossAndGradient	(	CGContextRef	context,
		CGRect	rect,
		CGColorRef	startColor,
		CGColorRef	endColor
	)

Definition at line 52 of file ZCMCommon.m.

{
    drawLinearGradient(context, rect, startColor, endColor);
    
    UIColor * glossColor1 = [UIColor colorWithRed:1.0 green:1.0 blue:1.0 alpha:0.35];
    UIColor * glossColor2 = [UIColor colorWithRed:1.0 green:1.0 blue:1.0 alpha:0.1];
    
    CGRect topHalf = CGRectMake(rect.origin.x, rect.origin.y, rect.size.width, rect.size.height/2);
    
    drawLinearGradient(context, topHalf, glossColor1.CGColor, glossColor2.CGColor);
}

drawLinearGradient()

void drawLinearGradient	(	CGContextRef	context,
		CGRect	rect,
		CGColorRef	startColor,
		CGColorRef	endColor
	)

Definition at line 12 of file ZCMCommon.m.

{
    CGColorSpaceRef colorSpace = CGColorSpaceCreateDeviceRGB();
    CGFloat locations[] = { 0.0, 1.0 };
    
    NSArray *colors = @[(__bridge id) startColor, (__bridge id) endColor];
    
    CGGradientRef gradient = CGGradientCreateWithColors(colorSpace, (__bridge CFArrayRef) colors, locations);
    
    CGPoint startPoint = CGPointMake(CGRectGetMidX(rect), CGRectGetMinY(rect));
    CGPoint endPoint = CGPointMake(CGRectGetMidX(rect), CGRectGetMaxY(rect));
    
    CGContextSaveGState(context);
    CGContextAddRect(context, rect);
    CGContextClip(context);
    CGContextDrawLinearGradient(context, gradient, startPoint, endPoint, 0);
    CGContextRestoreGState(context);
    
    CGGradientRelease(gradient);
    CGColorSpaceRelease(colorSpace);

}

rectFor1PxStroke()

CGRect rectFor1PxStroke

(

CGRect

rect

)

Definition at line 35 of file ZCMCommon.m.

{
    return CGRectMake(rect.origin.x + 0.5, rect.origin.y + 0.5, rect.size.width - 1, rect.size.height - 1);
}