nsscrollview

问题 How to set scrollView document view to be pinned to top left corner? If scrollView is big enough/bigger than its content, everything is drawn from bottom to up and it not looks right. I have to override isFlipped of scrollView? I was searching internet and overriding isFlipped to return true is not everything. I don't want to make my documentView flipped because then I have to make changes in that class to make everything looks like I want. 回答1: I created simple NSView class as an container

问题 I have an NSTextView inside an NSView (which is being used by a NSPopover , don't know if that is relevant) that I'm trying to resize automatically and programmatically (cf caption). I have been struggling with a lot of stuff, namely : Looking at NSLayoutManager and usedRectForTextContainer that give me aberrant size values ( usedRectForTextContainer : {{0, 0}, {0.001, 28}} ) Modifying NSScrollView frame , [NSScrollView contentView] , [NSScrollView documentView] Getting rid of AutoLayout I

问题 I have an NSTextView inside an NSView (which is being used by a NSPopover , don't know if that is relevant) that I'm trying to resize automatically and programmatically (cf caption). I have been struggling with a lot of stuff, namely : Looking at NSLayoutManager and usedRectForTextContainer that give me aberrant size values ( usedRectForTextContainer : {{0, 0}, {0.001, 28}} ) Modifying NSScrollView frame , [NSScrollView contentView] , [NSScrollView documentView] Getting rid of AutoLayout I

问题 I'm currently implementing drag and drop rearranging in a table view in my OS X app. While normal scrolling works fine, autoscroll while dragging it totally broken. If I grab a cell and start dragging, autoscroll just tells the table to scroll to the top. If I manually scroll using the trackpad during dragging the table continually pops to the top. If I drag one of the top cells, the table will not autoscroll down when dragging near the bottom. I subclassed NSScrollView and overrode the

问题 I can't get scrolling both vertically and horizontally to work with a custom layout for NSCollectionView. According to the docs, in my subclass I return the `collectionViewContentSize' and if that is too big, scrolling is automatically enabled in the enclosing scroll view of the collection view. However, even if I order all elements in a horizontal row, only vertical scrolling is enabled. Here is a screenshot: http://i.stack.imgur.com/tMbCN.png Here is my layout code: import Cocoa class

问题 I can't get scrolling both vertically and horizontally to work with a custom layout for NSCollectionView. According to the docs, in my subclass I return the `collectionViewContentSize' and if that is too big, scrolling is automatically enabled in the enclosing scroll view of the collection view. However, even if I order all elements in a horizontal row, only vertical scrolling is enabled. Here is a screenshot: http://i.stack.imgur.com/tMbCN.png Here is my layout code: import Cocoa class

问题 I need fixed-size NSTextViews inside a larger scrolling window. IB requires that the textviews be inside their own NSScrollViews, even though their min/max sizes are fixed so that they won’t actually scroll. When trackpad gestures are made within the textview frames (regardless of whether they have focus), they are captured by the textviews’ scrollviews, so nothing happens. How do I tell the textviews’ scrollviews to pass scroll events up to the window’s main scrollview? (Or perhaps I should

问题 I need fixed-size NSTextViews inside a larger scrolling window. IB requires that the textviews be inside their own NSScrollViews, even though their min/max sizes are fixed so that they won’t actually scroll. When trackpad gestures are made within the textview frames (regardless of whether they have focus), they are captured by the textviews’ scrollviews, so nothing happens. How do I tell the textviews’ scrollviews to pass scroll events up to the window’s main scrollview? (Or perhaps I should

问题 Is there a simple way to get an NSScrollView to adapt to its document view changing size when using auto layout? I have tried to call both setNeedsUpdateConstraints: and setNeedsLayout: on the document view, the clip view and the scroll view, without any results. fittingSize of the document view reports the correct size. The problem is that the document view, which holds subviews, is not re-sized when the subviews change their size, even if they call invalidateIntrinsicContentSize . The

问题 Is there a way for a custom NSView to know whether it is embedded in a NSScrollView or not? I am creating a custom NSView for displaying some content. When my view is placed in a window or another view, its size is fixed and the content is clipped to available size. When my view is placed in a NSScrollView its size must be adjusted according to content so it can be scrolled if necessary. I know I can add a member in my view that specifies the NSScrollView that hosts my view and set this