问题描述
我正在加载包含一千多个元素的 ComboViewer.
I am loading my ComboViewer with over one thousand elements.
有些元素比底层combo的宽度还要长.
Some elements are longer than the width of underlying combo.
我想在条目上添加工具提示，而不是在 combo 上.
I want to add tooltip on the entries and NOT on the combo.
我希望这样，当列表下拉并且用户将鼠标指针放在其中一个值上时，整个文本应该可以通过 tooltip 显示，类似于 tooltip 为 JFace TableViewer 显示.
I want it in such a way that, when the list drops down and the user places the mouse pointer over one of the value, the entire text should be displayable via tooltip similar to the tooltip shown for a JFace TableViewer.
推荐答案
如果您使用的是 ComboViewer 并且您提供自己的 CCombo 实例，您可以获得CCombo 和其中之一应该是一个显示为下拉菜单的 List 控件.您可以将 MouseTrackListener 添加到此 List 控件并根据鼠标悬停的项目显示工具提示.
If you are using a ComboViewer and you provide your own CCombo instance, you can get children of the CCombo and one of them should be a List control that it shows as a dropdown menu. You can add your MouseTrackListener to this List control and show tooltip depending on which item the mouse is hovering.
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