获取JavaSwing中组件的布局约束
下面是我一直在研究的代码模型获取JavaSwing中组件的布局约束,java,swing,layout,constraints,miglayout,Java,Swing,Layout,Constraints,Miglayout,下面是我一直在研究的代码模型 public class Pane { private final JPanel pane; private JPanel namePanel; private final JTextField panIdField; public Pane() { pane = new JPanel(); pane.setLayout(new MigLayout("", "[][grow]", "[][][]
public class Pane {
private final JPanel pane;
private JPanel namePanel;
private final JTextField panIdField;
public Pane() {
pane = new JPanel();
pane.setLayout(new MigLayout("", "[][grow]", "[][][][][]"));
namePanel = new JPanel();
pane.add(namePanel, "cell 1 1,growx");
panIdField = new JTextField();
pane.add(panIdField, "cell 1 2,growx");
panIdField.setColumns(10);
}
public void replaceNameField(JPanel newNamePanel) {
this.namePanel = newNamePanel;
// Object constraintsForNamePanel =
pane.remove(namePanel);
pane.add(newNamePanel, constraintsForNamePanel);
}
}
容器中有方法
public void add(Component comp, Object constraints)
是否有任何方法可以通过编程获得我们设置的约束
,比如getConstraints(…)
,以便我们以后使用
在我的代码中,我希望使用它在同一位置用新组件替换旧组件
之后我要做什么
Object constraintsForNamePanel =
获取名称面板
的约束
目前,我正在使用
pane.add(newNamePanel, "cell 1 1,growx");
它正在工作,但问题是我正在使用
WindowsBuilder
进行UI,当我向窗格添加新组件时,我的UI会发生变化,我不想复制和粘贴约束。得到了解决方案,我必须执行以下操作
public void replaceNameField(JPanel newNamePanel) {
MigLayout layout = (MigLayout) pane.getLayout();
Object constraintsForNamePanel = layout.getComponentConstraints(this.namePanel);
pane.remove(this.namePanel);
this.namePanel = newNamePanel;
pane.add(newNamePanel, constraintsForNamePanel);
}