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Draw round rect with CoreGraphics

/ Published in: Objective C
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  1. void CGContextAddRoundRect(CGContextRef context, CGRect rect, float radius)
  2. {
  3. 	CGContextRef context = UIGraphicsGetCurrentContext();
  4. 	[[UIColor whiteColor] set];
  5. 	CGContextMoveToPoint(context, rect.origin.x, rect.origin.y + radius);
  6. 	CGContextAddLineToPoint(context, rect.origin.x, rect.origin.y + rect.size.height - radius);
  7. 	CGContextAddArc(context, rect.origin.x + radius, rect.origin.y + rect.size.height - radius, 
  8. 		radius, M_PI / 4, M_PI / 2, 1);
  9. 	CGContextAddLineToPoint(context, rect.origin.x + rect.size.width - radius, 
  10. 		rect.origin.y + rect.size.height);
  11. 	CGContextAddArc(context, rect.origin.x + rect.size.width - radius, 
  12. 		rect.origin.y + rect.size.height - radius, radius, M_PI / 2, 0.0f, 1);
  13. 	CGContextAddLineToPoint(context, rect.origin.x + rect.size.width, rect.origin.y + radius);
  14. 	CGContextAddArc(context, rect.origin.x + rect.size.width - radius, rect.origin.y + radius, 
  15. 		radius, 0.0f, -M_PI / 2, 1);
  16. 	CGContextAddLineToPoint(context, rect.origin.x + radius, rect.origin.y);
  17. 	CGContextAddArc(context, rect.origin.x + radius, rect.origin.y + radius, radius, 
  18. 		-M_PI / 2, M_PI, 1);
  19. }

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