feat #95: 그래프 확대/축소 추가

Nexters · Sep 8, 2023 · dcc5371 · dcc5371
1 parent 75a5e18
commit dcc5371
Showing 1 changed file with 6 additions and 3 deletions.
diff --git a/Projects/Core/Sources/Utility/UI/PinchZoom/PinchZoomView.swift b/Projects/Core/Sources/Utility/UI/PinchZoom/PinchZoomView.swift
@@ -13,6 +13,8 @@ import UIKit
 class PinchZoomView: UIView {
  weak var delegate: PinchZoomViewDelgate?
 
+ private var lastScale: CGFloat = 1
+
  private(set) var scale: CGFloat = 0 {
  didSet {
  delegate?.pinchZoomView(self, didChangeScale: scale)
@@ -74,14 +76,15 @@ class PinchZoomView: UIView {
  numberOfTouches = gesture.numberOfTouches
  }
 
- scale = gesture.scale
+ scale = lastScale * gesture.scale
 
  location = gesture.location(in: self)
  offset = CGSize(width: location.x - startLocation.x, height: location.y - startLocation.y)
-
+ 
  case .ended, .cancelled, .failed:
  isPinching = false
- scale = 1.0
+ scale = scale.between(min: 0.5, max: 2.0)
+ lastScale = scale
  anchor = .center
  offset = .zero
  default: