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[Omid]

Originally Posted by danielb21

Spent more time today exploring the [NSString drawInRect:] method to see if I could get it to work, and I now have a working solution. The key is that you have to push the graphics context onto the stack. Below is how it works:

NSString *string = @"Text to print.";

UIGraphicsPushContext(context);
CGContextTranslateCTM(context, 0, 20);
CGContextScaleCTM(context, 1.0, -1.0);
[string drawInRect:CGRectMake(0, 0, 300, 200) withFont:[UIFont fontWithName:@"Verdana" size:9]];
UIGraphicsPopContext();

So, the above code block pushes the context onto the stack, reverses the coordinates so that the text is drawn correctly, and then uses the drawInRect: withFont: method to draw the text, and finally calls the UIGraphicsPopContext() method.

It's important to note that each time you call UIGraphicsPushContext(context); you must also call the pop context method, otherwise you'll be left with nothing.

Thanks to decay for pushing me to investigate this more and enjoy everyone!

First of all thanks for the tutorial and the code above.
Can anyone tell me how to position a rotated text correctly?
I try this, but it's not correct:

UIGraphicsPushContext(pdfContext);
	
	CGContextTranslateCTM(pdfContext,txtPos.origin.x, newY);
	CGContextScaleCTM(pdfContext, 1.0, -1.0);
	
	CGAffineTransform textTransform = CGAffineTransformMakeRotation(/*M_PI*2 - */currentAngle);
	CGContextConcatCTM(pdfContext, textTransform);
	
	
	NSString *string =[NSString stringWithCString:text];
	[string drawInRect:CGRectMake(0, 0, txtPos.size.width, txtPos.size.height) withFont:[UIFont fontWithName:@"Helvetica" size:48]];
	
	UIGraphicsPopContext();

Thanks in advance,

Omid