JPanel GridBagLayout到GridPane

Question

JPanel bottomMessagePanel = new JPanel();
bottomMessagePanel.setLayout(new GridBagLayout());
bottomMessagePanel.setBorder(BorderFactory.createEmptyBorder());
bottomMessagePanel.add(someJComponent, new GridBagConstraints(0, 0, 1, 1, .35, 1, GridBagConstraints.WEST, GridBagConstraints.BOTH, new Insets(0, 0, 0, 0), 0, 0));
bottomMessagePanel.add(someOtherJComponent, new GridBagConstraints(1, 0, 1, 1, .65, 1, GridBagConstraints.CENTER, GridBagConstraints.BOTH, new Insets(0, 0, 0, 0), 0, 0));

JPanel stepPanel = new JPanel();
stepPanel.setLayout(new GridBagLayout());
stepPanel.add(someJComponent, new GridBagConstraints(1, 0, 1, 1, 0, 0, GridBagConstraints.EAST, GridBagConstraints.BOTH, new Insets(0, 0, 0, 0), 0, 0));
stepPanel.add(someOtherJComponent, new GridBagConstraints(0, 0, 1, 1, 0, 0, GridBagConstraints.EAST, GridBagConstraints.BOTH, new Insets(0, 0, 0, 0), 0, 0));
stepPanel.add(some3rdJComponent, new GridBagConstraints(2, 0, 1, 1, 0, 0, GridBagConstraints.EAST, GridBagConstraints.BOTH, new Insets(0, 0, 0, 0), 0, 0));

任何帮助都是非常感谢的！

Answer 1

您可以指定GridBagConstraints，将值传递给构造函数。

GridBagConstraints(
        int gridx,
        int gridy,
        int gridwidth,
        int gridheight,
        double weightx,
        double weighty,
        int anchor,
        int fill,
        Insets insets,
        int ipadx,
        int ipady)

让我们描述一下如何在JavaFX中使用这些参数的等价物：

Node node = ...
GridPane gridPane = ...

通常使用适当的gridpane的add方法来指定这些值。它们在JavaFX中称为columnindex、rowindex、columnspan和rowspan。如果columnspan和rowspan为1，则使用add方法取3个参数即可：

gridPane.add(node, gridx, gridy);

gridPane.add(node, gridx, gridy, gridwidth, gridheight);

您可以为此使用ColumnConstrants/RowConstraints的Halgening/code>/code>/code>属性，也可以使用GridPane.SetValign和GridPane.SetValign:

GridPane.setHalignment(node, HPos.LEFT);
GridPane.setValignment(node, VPos.TOP);

与此等效的是设置行和列约束的fillheight和fillwidth值，并使用gridpane.setfillheight和gridpane.setfillheight:

GridPane.setFillWidth(node, Boolean.FALSE);
GridPane.setFillHeight(node, Boolean.FALSE);

这些属性的默认值为true。

您可以使用gridpane.setmargin来指定。如果对所有值都使用0，则不需要指定此值。

GridPane.setMargin(node, new Insets(top, right, bottom, left));

在JavaFX中没有与此等价的东西。