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Add 10.12 imageViewWithImage to NSImageView, show outline view image to let the user know the item is expandable

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Gregory John Casamento 2024-04-21 09:49:37 -04:00
parent 9da7bd4502
commit 5d17658b0e
4 changed files with 21 additions and 3 deletions
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4
Source/NSOutlineView.m
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@ -689,7 +689,9 @@ static NSImage *unexpandable = nil;
CHECK_REQUIRED_METHOD(outlineView:child:ofItem:);
CHECK_REQUIRED_METHOD(outlineView:isItemExpandable:);
CHECK_REQUIRED_METHOD(outlineView:numberOfChildrenOfItem:);
CHECK_REQUIRED_METHOD(outlineView:objectValueForTableColumn:byItem:);
// This method is @optional in NSOutlineViewDataSource as of macOS10.0
// CHECK_REQUIRED_METHOD(outlineView:objectValueForTableColumn:byItem:);
// Is the data source editable?
_dataSource_editable = [anObject respondsToSelector: