Fix wrap content calculation by filter hidden views

README.md

@@ -1371,20 +1371,24 @@ The following methods are useful to adjust view's width and/or height to wrap al
 
 **Methods:**
 
-* **`wrapContent()`**  
-**`wrapContent(padding: CGFloat)`**  
-**`wrapContent(padding: UIEdgeInsets)`**   
-Adjust the view's width and height to wrap all its subviews. The method also adjusts subviews's position to create a tight wrap. It is also possible to specify an optional padding around all subviews. 
-* **`wrapContent(:WrapType)`**  
-**`wrapContent(:WrapType, padding: CGFloat)`**  **`wrapContent(:WrapType, padding: UIEdgeInsets)`**  
-Adjust the view's width AND/OR height to wrap all its subviews. Accept a WrapType parameter to define the wrapping type. It is also possible to specify an optional padding around all subviews.
- 
+* **`wrapContent(viewFilter: ViewFilter = .all)`**  
+**`wrapContent(padding: CGFloat, viewFilter: ViewFilter = .all)`**  
+**`wrapContent(padding: UIEdgeInsets, viewFilter: ViewFilter = .all)`**   
+Adjust the view's width and height to wrap all its subviews. The method also adjusts subviews's position to create a tight wrap. It is also possible to specify an optional padding around all subviews. Additionally, it's possible to specify whether to include all views or only visible ones. 
+* **`wrapContent(:WrapType, viewFilter: ViewFilter = .all)`**  **`wrapContent(:WrapType, padding: UIEdgeInsets, viewFilter: ViewFilter = .all)`**  
+**`wrapContent(:WrapType, padding: CGFloat, viewFilter: ViewFilter = .all)`**  
+Adjust the view's width AND/OR height to wrap all its subviews. Accept a WrapType parameter to define the wrapping type. It is also possible to specify an optional padding around all subviews. Additionally, it's possible to specify whether to include all views or only visible ones.
+
 **Types:** 
 
 * **`WrapType`** values:
 	* `.horizontally`: Adjust the view's width and update subviews's horizontal position.
 	* `.vertically`: Adjust only the view's height and update subviews's vertical position.
 	* `.all`: Adjust the view's width AND height and update subviews position. This is the default WrapType parameter value `wrapContent()` methods.
+
+* **`ViewFilter`** values:
+    * `.all`: Consider all views
+    * `.visibleOnly`: Consider only visible views (isHidden is false and alpha is > 0)
 
 ###### Usage examples:
 ```swift

Sources/Extensions/CALayer+PinLayout.swift

@@ -30,6 +30,10 @@ extension CALayer: Layoutable {
         return sublayers ?? []
     }
 
+    public var isConsideredVisibleForViewFilters: Bool {
+        return !isHidden && opacity > 0
+    }
+
     public var pin: PinLayout<CALayer> {
         return PinLayout(view: self, keepTransform: true)
     }

Sources/Extensions/NSView+PinLayout.swift

@@ -33,6 +33,10 @@ extension NSView: Layoutable {
         return PinLayout(view: self, keepTransform: false)
     }
 
+    public var isConsideredVisibleForViewFilters: Bool {
+        return !isHidden && alphaValue > 0
+    }
+
     @objc public var pinObjc: PinLayoutObjC {
         return PinLayoutObjCImpl(view: self, keepTransform: true)
     }

Sources/Extensions/UIView+PinLayout.swift

@@ -37,6 +37,10 @@ extension UIView: Layoutable, SizeCalculable {
         return PinLayoutObjCImpl(view: self, keepTransform: true)
     }
 
+    public var isConsideredVisibleForViewFilters: Bool {
+        return !isHidden && alpha > 0
+    }
+
     public func getRect(keepTransform: Bool) -> CGRect {
         guard !Pin.autoSizingInProgress || autoSizingRect == nil else { return autoSizingRect ?? CGRect.zero }
 

Sources/Layoutable.swift

@@ -29,6 +29,8 @@ public protocol Layoutable: AnyObject, Equatable, CustomDebugStringConvertible {
     var superview: PinView? { get }
     var subviews: [PinView] { get }
 
+    var isConsideredVisibleForViewFilters: Bool { get }
+
     func getRect(keepTransform: Bool) -> CGRect
     func setRect(_ rect: CGRect, keepTransform: Bool)
 

Sources/PinLayout+WrapContent.swift

@@ -26,21 +26,25 @@ import AppKit
 extension PinLayout {
     /**
      Adjust the view's width & height to wrap all its subviews. The method also adjust subviews position to create a tight wrap.
+
+     - Parameters:
+     - viewFilter: Specify whether to include all views or only visible ones.
      */
     @discardableResult
-    public func wrapContent() -> PinLayout {
-        return wrapContent(.all, padding: PEdgeInsets(top: 0, left: 0, bottom: 0, right: 0), { return "wrapContent()" })
+    public func wrapContent(viewFilter: ViewFilter = .all) -> PinLayout {
+        return wrapContent(.all, padding: PEdgeInsets(top: 0, left: 0, bottom: 0, right: 0), viewFilter: viewFilter, { return "wrapContent()" })
     }
 
     /**
      Adjust the view's width & height to wrap all its subviews. The method also adds a padding around all subviews.
 
      - Parameters:
      - padding: Specify a padding value.
+     - viewFilter: Specify whether to include all views or only visible ones.
      */
     @discardableResult
-    public func wrapContent(padding: CGFloat) -> PinLayout {
-        return wrapContent(.all, padding: PEdgeInsets(top: padding, left: padding, bottom: padding, right: padding), { return "wrapContent(padding: \(padding)" })
+    public func wrapContent(padding: CGFloat, viewFilter: ViewFilter = .all) -> PinLayout {
+        return wrapContent(.all, padding: PEdgeInsets(top: padding, left: padding, bottom: padding, right: padding), viewFilter: viewFilter, { return "wrapContent(padding: \(padding)" })
     }
 
     /**
@@ -51,10 +55,11 @@ extension PinLayout {
 
      - Parameters:
      - padding: Specify a padding using an UIEdgeInsets.
+     - viewFilter: Specify whether to include all views or only visible ones.
      */
     @discardableResult
-    public func wrapContent(padding: PEdgeInsets) -> PinLayout {
-        return wrapContent(.all, padding: padding, { return "wrapContent(padding: \(insetsDescription(padding))" })
+    public func wrapContent(padding: PEdgeInsets, viewFilter: ViewFilter = .all) -> PinLayout {
+        return wrapContent(.all, padding: padding, viewFilter: viewFilter, { return "wrapContent(padding: \(insetsDescription(padding))" })
     }
 
     /**
@@ -64,10 +69,11 @@ extension PinLayout {
 
      - Parameters:
      - type: Specify the wrap type (.all, .horizontally, .vertically)
+     - viewFilter: Specify whether to include all views or only visible ones.
      */
     @discardableResult
-    public func wrapContent(_ type: WrapType) -> PinLayout {
-        return wrapContent(type, padding: PEdgeInsets(top: 0, left: 0, bottom: 0, right: 0), { return "wrapContent(\(type.description)" })
+    public func wrapContent(_ type: WrapType, viewFilter: ViewFilter = .all) -> PinLayout {
+        return wrapContent(type, padding: PEdgeInsets(top: 0, left: 0, bottom: 0, right: 0), viewFilter: viewFilter, { return "wrapContent(\(type.description)" })
     }
 
     /**
@@ -79,10 +85,11 @@ extension PinLayout {
      - Parameters:
      - type: Specify the wrap type (.all, .horizontally, .vertically)
      - padding: Specify a padding value.
+     - viewFilter: Specify whether to include all views or only visible ones.
      */
     @discardableResult
-    public func wrapContent(_ type: WrapType, padding: CGFloat) -> PinLayout {
-        return wrapContent(type, padding: PEdgeInsets(top: padding, left: padding, bottom: padding, right: padding), { return "wrapContent(\(type.description), padding: \(padding)" })
+    public func wrapContent(_ type: WrapType, padding: CGFloat, viewFilter: ViewFilter = .all) -> PinLayout {
+        return wrapContent(type, padding: PEdgeInsets(top: padding, left: padding, bottom: padding, right: padding), viewFilter: viewFilter, { return "wrapContent(\(type.description), padding: \(padding)" })
     }
 
     /**
@@ -94,14 +101,22 @@ extension PinLayout {
      - Parameters:
      - type: Specify the wrap type (.all, .horizontally, .vertically)
      - padding: Specify a padding using an UIEdgeInsets.
+     - viewFilter: Specify whether to include all views or only visible ones.
      */
     @discardableResult
-    public func wrapContent(_ type: WrapType, padding: PEdgeInsets) -> PinLayout {
-        return wrapContent(type, padding: padding, { return "wrapContent(\(type.description), padding: \(insetsDescription(padding))" })
+    public func wrapContent(_ type: WrapType, padding: PEdgeInsets, viewFilter: ViewFilter = .all) -> PinLayout {
+        return wrapContent(type, padding: padding, viewFilter: viewFilter, { return "wrapContent(\(type.description), padding: \(insetsDescription(padding))" })
     }
 
-    private func wrapContent(_ type: WrapType, padding: PEdgeInsets, _ context: Context) -> PinLayout {
-        let subviews = view.subviews
+    private func wrapContent(_ type: WrapType, padding: PEdgeInsets, viewFilter: ViewFilter, _ context: Context) -> PinLayout {
+        let subviews: [PinView.PinView]
+        switch viewFilter {
+        case .visibleOnly:
+            subviews = view.subviews.filter { $0.isConsideredVisibleForViewFilters }
+        case .all:
+            subviews = view.subviews
+        }
+
         guard !subviews.isEmpty else { return self }
 
         let firstViewRect = subviews[0].getRect(keepTransform: keepTransform)

Sources/Types.swift

@@ -194,6 +194,13 @@ public enum FitType {
     case vertically
 }
 
+@objc public enum ViewFilter: Int {
+    /// Consider all views
+    case all
+    /// Consider only visible views (isHidden is false and alpha is > 0)
+    case visibleOnly
+}
+
 @objc public enum LayoutDirection: Int {
     case auto
     case ltr