java - 为什么SWT List填充全复合？

Question

您好，我对 SWT 中的布局有疑问，我想创建一个具有 4 个大小相等的列表的应用程序。当列表为空时，每个列表看起来都不错，但是当我用覆盖整个组合的数据来填充其中一个列表时。

并列出数据:

我知道它的布局错误，所以我将向您展示一些来源:

shlPirotechnikafcwnxrap.setLayout(new FillLayout(SWT.HORIZONTAL));

......

Composite mainComposite = new Composite(shlPirotechnikafcwnxrap,
                SWT.NONE);
        mainComposite.setLayout(new FormLayout());

......

    Composite rightCenterComposite = new Composite(mainComposite, SWT.NONE);
        rightCenterComposite.setLayoutData(new FormData());
        rightCenterComposite.setLayout(new GridLayout());
        rightCenterComposite.setLayoutData(GUIHelper.getFormData(5, 100, 30, 100));

        TabFolder tabFolder = new TabFolder(rightCenterComposite, SWT.NONE);
        tabFolder.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));

        /**
         * TAB ITEM
         */
        TabItem tbtmSql = new TabItem(tabFolder, SWT.NONE);
        tbtmSql.setText("SQL");

        /**
         * Composite inside TabItem
         */
        Composite sqlTabComposite = new Composite(tabFolder, SWT.NONE);
        GridLayout gl_sqlTabComposite = new GridLayout();
        gl_sqlTabComposite.makeColumnsEqualWidth = true;
        gl_sqlTabComposite.numColumns = 2;
        sqlTabComposite.setLayout(gl_sqlTabComposite);
        sqlTabComposite.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
        tbtmSql.setControl(sqlTabComposite);

        Group grpSowaKluczoweSql = new Group(sqlTabComposite, SWT.NONE);
        grpSowaKluczoweSql.setLayout(new FormLayout());
        grpSowaKluczoweSql.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
        grpSowaKluczoweSql.setText("S\u0142owa kluczowe i operatory SQL:");

        List listSlowaKluczoweSql = new List(grpSowaKluczoweSql, SWT.BORDER | SWT.V_SCROLL);
        listSlowaKluczoweSql.setLayoutData(new FormData());
        listSlowaKluczoweSql.setLayoutData(GUIHelper.getFormData(0, 100, 0, 100));

        Group grpTabele = new Group(sqlTabComposite, SWT.NONE);
        grpTabele.setLayout(new FormLayout());
        grpTabele.setLayoutData(new GridData(SWT.FILL, SWT.FILL, false, false));
        grpTabele.setText("Nazwy tabel:");

        List listTabele = new List(grpTabele, SWT.BORDER | SWT.V_SCROLL);
        listTabele.setLayoutData(new FormData());
        listTabele.setLayoutData(GUIHelper.getFormData(0, 100, 0, 100));

Answer 1

这是因为: sqlTabComposite.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true)); 您正在使用 FILL + 抓取多余的空间。尝试使用适当的布局常量，例如用于水平对齐的 BEGINNING 和用于垂直对齐的 TOP。还将grabExcessVerticalSpace 设置为 false。检查所有相关位置。