在基于视图的NSTableView中处理自定义选择样式 [英] Handling custom selection style in view based NSTableView

问题描述

如何为基于 NSTableView 的视图绘制自定义选择样式？我尝试在 NSTableCellView 子类中设置 BOOL var，并将其设置为 YES 如果它被点击，然后我可以成功地绘制我的自定义选择。但是当单击另一个视图时，如何将 BOOL var更改为 NO ？感谢任何帮助。

How do I go about drawing my own custom selection style for a view based NSTableView? I tried putting a BOOL var in my NSTableCellView subclass and set that to YES if it is clicked and then I can successfully draw my custom selection. But how do I change that BOOL var to NO when another view is clicked? Thanks for any help.

编辑：阅读通过NSTableView文档后，它看起来像我需要子类NSTableRowView覆盖选择绘图，但我该怎么办NSTableRowView子类？如何获得表格使用它？

After reading through the NSTableView docs, it looks like I need to subclass NSTableRowView to override the selection drawing, but what do I do with my NSTableRowView subclass? How do I get the table to use it?

推荐答案

好吧，我想出来了。你只需要子类 NSTableRowView 。它具有绘制选定和取消选择行的背景的方法。要使表视图使用您的子类，只需实现表视图委托方法 tableView：rowViewForRow：并返回您的子类的实例。

Alright, I figured it out. You just have to subclass NSTableRowView. It has methods for drawing the background for selected and deselected rows. To get the table view to use your subclass just implement the table view delegate method tableView:rowViewForRow: and return an instance of your subclass.

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