控制边界 [英] Borders around control

问题描述

我有一个自定义控件.当我在控件周围添加边框时，边框超出了控件右侧和底部的界限.我以为我曾经知道一种防止边界这样做的方法，但我已经不记得了.有什么想法吗?

I have a custom control that I am making. When I add a border around the control the border goes outside the bounds of the control on the right and bottom side. I thought I once knew a way to prevent the border from doing this, but I no longer remember. Any ideas?

推荐答案

事实证明，控件绘制的笔画实际上会增加控件的大小.因此，无论笔画粗细如何，为了使控件的大小保持恒定，我执行了以下操作:

我将控件的渲染部分向下和向右平移了笔触厚度的一半.
我通过笔触厚度同时减小了高度和宽度.

到目前为止，这似乎已经解决了我的问题！

It turns out that the stroke that is drawn by a control actually adds on to the size of the control. So in order to keep my control appear at a constant size no matter what the stroke thickness is, I did the following:

I translated the rendered portion of my control down and to the right by half the stroke thickness.
I decreased both the height and width by the stroke thickness.

So far this seems to have solved my problem!

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