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+ Pinch to Zoom

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moritz haarmann
2014-03-19 11:55:44 +01:00
parent 8c3351fdc5
commit a1c27492ee
1 changed files with 20 additions and 1 deletions
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21
Classes/BITImageAnnotationViewController.m
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@@ -207,8 +207,27 @@
self.pinchStartingFrame = self.currentAnnotation.frame; self.pinchStartingFrame = self.currentAnnotation.frame;
} }
} else if (gestureRecognizer.state == UIGestureRecognizerStateChanged && self.currentAnnotation){ } else if (gestureRecognizer.state == UIGestureRecognizerStateChanged && self.currentAnnotation && gestureRecognizer.numberOfTouches>1){
CGRect newFrame= (self.pinchStartingFrame); CGRect newFrame= (self.pinchStartingFrame);
NSLog(@"%f", [gestureRecognizer scale]);
// upper point?
CGPoint point1 = [gestureRecognizer locationOfTouch:0 inView:self.view];
CGPoint point2 = [gestureRecognizer locationOfTouch:1 inView:self.view];
newFrame.origin.x = point1.x;
newFrame.origin.y = point1.y;
newFrame.origin.x = (point1.x > point2.x) ? point2.x : point1.x;
newFrame.origin.y = (point1.y > point2.y) ? point2.y : point1.y;
newFrame.size.width = (point1.x > point2.x) ? point1.x - point2.x : point2.x - point1.x;
newFrame.size.height = (point1.y > point2.y) ? point1.y - point2.y : point2.y - point1.y;
self.currentAnnotation.frame = newFrame;
// we
} else { } else {