【右键菜单】自动滚动，参考pro，不是一页页的滚动 修复

PDF Office/PDF Master/Class/PDFTools/AutoFlow/KMAotuFlowExtension.swift

@@ -40,18 +40,18 @@ extension CPDFView {
     @objc func updateAutoFlow() {
         self.setDisplay(.singlePage)
         let jumpSpace = KMAutoFlowOptionsSheetController.jumpSpace()
-        if self.displayMode() == .singlePage || self.displayMode() == .twoUp {
+        if KMPreferenceManager.shared.viewPageDisplayType == .singlePage ||
+            KMPreferenceManager.shared.viewPageDisplayType == .twoUp {
             if canGoToNextPage() {
                 goToNextPage(nil)
             } else {
                 stopAutoFlow()
             }
         } else {
-            if let scrollView = documentView().enclosingScrollView {
+            if let scrollView = documentView() {
                 let clipView = scrollView.contentView
                 var newOrigin = clipView.bounds.origin
-                newOrigin.y = newOrigin.y - CGFloat(jumpSpace)
-
+                newOrigin.y = newOrigin.y + CGFloat(jumpSpace)
                 clipView.animator().setBoundsOrigin(newOrigin)
 
                 if newOrigin.y <= 0 {
@@ -139,3 +139,41 @@ extension CPDFView {
         }
     }
 }
+
+
+//extension CPDFView {
+//    func displayViewMode() -> CPDFDisplayViewMode {
+//        var displayViewMode: CPDFDisplayViewMode = .singlePage
+//        if self.displayMode() == .singlePage && self.displayDirection == .vertical {
+//            displayViewMode = .singlePageContinuous
+//        }
+//        
+//        if self.displayMode() == .twoUp  && self.displayDirection == .vertical {
+//            displayViewMode = .twoUpContinuous
+//        }
+//        return displayViewMode
+//    }
+//    
+//    func setDisplayViewMode(mode: CPDFDisplayViewMode) {
+//        switch mode {
+//        case .twoUpContinuous:
+//            self.displayTwoUp = true
+//            self.displaysAsBook = false
+//            self.displayDirection = .vertical
+//            break
+//        case .twoUp:
+//            self.displayTwoUp = true
+//            self.displaysAsBook = false
+//            self.displayDirection = .horizontal
+//            break
+//        case .singlePageContinuous:
+//            self.displayTwoUp = false
+//            self.displayDirection = .vertical
+//            break
+//        default:
+//            self.displayTwoUp = false
+//            self.displayDirection = .horizontal
+//            break
+//        }
+//    }
+//}