如何从具有GridBagLayout布局的JPanel获取位于特定gridx中的组件，gridy？ [英] How to get component located in a specific gridx, gridy from a JPanel with GridBagLayout layout?

问题描述

我有一个带有gridbaglayout布局的jpanel，其中有几个jtextfields，几个jlabels，几个动态添加的jbuttons。因此我无法知道他们的具体命令，因此无法使用panel.getComponent（count）。如果有像getGridx（int x）或getGridy（int y）这样的东西，我查看了api。没找到。有什么类似的方法吗？

I have a jpanel with gridbaglayout layout, in it i have several jtextfields, several jlabels, several jbuttons which get added dynamically. Therefore I cannot know their specific orders, hence cannot use panel.getComponent(count). I looked in the api if there is something like getGridx(int x) or getGridy(int y). Didn't find. Is there anything similar to those methods?

推荐答案

最简单的解决方案可能是使用 GridBagLayout #getConstraints（Component） 并简单地遍历所有组件，直到找到符合所需网格位置的组件...

The simplest solution might be to use GridBagLayout#getConstraints(Component) and simply loop through all the components until you find one that matches the required grid position...

Component match = null;
GridBagLayout layout = ...
for (Component comp : getComponents()) {
    GridBagConstraints gbc = layout.getConstraints(comp);
    if (gbc.gridx = x && gbc.gridy = y) {
        match = comp;
        break;
    }
}

这篇关于如何从具有GridBagLayout布局的JPanel获取位于特定gridx中的组件，gridy？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！