contentsize and contentOffset equivalent in NSScroll view
UIScrollView* uiScroll;uiScroll.contentSize;uiScroll.contentOffset;uiScroll.contentSize = CGSizeMake(w,h);uiScroll.contentOffset = CGPointMake(x,y);
=
NSScrollView* nsScroll;nsScroll.documentView.frame.size;nsScroll.documentVisibleRect.origin;nsScroll.documentView.frameSize = NSMakeSize(w,h);[nsScroll.documentView scrollPoint:NSMakePoint(x,y)];
Or perhaps even better:
import AppKitextension NSScrollView { var documentSize: NSSize { set { documentView?.setFrameSize(newValue) } get { documentView?.frame.size ?? NSSize.zero } } var documentOffset: NSPoint { set { documentView?.scroll(newValue) } get { documentVisibleRect.origin } }}
Notes: I used 'documentSize' (and 'documentOffset') because 'contentSize' conflicts with an already existing property of NSScrollView.
In addition to the lines from @aepryus, here are a couple more useful lines for getting/setting the scroll offset on macOS:
//Get the current scroll offset:_contentViewOffset = scrollView.contentView.bounds.origin;//Set the scroll offset from the retrieved point:NSPoint scrollPoint = [scrollView.contentView convertPoint:_contentViewOffset toView:scrollView.documentView];[scrollView.documentView scrollPoint:scrollPoint];
Everything you need to know about NSScrollView
is laid out in the Scroll View Programming Guide for Cocoa provided in the documentation.
Although it doesn't appear that there's a direct equivalent, UIScrollView
's contentSize
can be likened to the size of NSScrollView
's documentView
, which is the scrollable content provided as an NSView
to NSScrollView
with setDocumentView:
.
setContentOffset:
can be compared to NSView
's scrollPoint:
, which uses an NSPoint
to specify the offset of the documentView
within the NSScrollView
.
See the documentation for elaboration and code examples.