Question

现在我已在TableViewer成功添加了TitleAreaDialog 我想弄清楚我遇到的一些布局问题我可以在对话框窗口中控制tableViewer的布局和位置现在桌子出现在右侧我希望它以我的父复合材料为中心我可以在createDialogArea方法中将TableViewer添加到父布局吗？我将在Dialog中添加更多复合材料，并希望能够控制它们的去向和外观。我的表格在表格的末尾显示了一个半空的列，有没有办法删除它？

Dialog w/TableViewer

类似的东西：

GridData gridData = new GridData();
gridData.grabExcessHorizontalSpace = true;
gridData.horizontalAlignment = GridData.CENTER;
TableViewer d = createTableViewer(area);
d.setLayoutData(gridData);

这是我的createDialogArea代码。

protected Control createDialogArea(Composite parent) {
   final Composite area = new Composite(parent, SWT.NULL);
   final GridLayout gridLayout = new GridLayout();
   gridLayout.marginWidth = 15;
   gridLayout.marginHeight = 10;
   area.setLayout(gridLayout);

   TableViewer d = createTableViewer(area);

   return area;
}

这是我的tableviewer代码

 private TableViewer createTableViewer(Composite parent) {
    viewer = new TableViewer(parent, SWT.MULTI | SWT.H_SCROLL | SWT.V_SCROLL | SWT.FULL_SELECTION | SWT.BORDER);
    createColumns(parent, viewer);
    final Table table = viewer.getTable();
    table.setHeaderVisible(true);
    table.setLinesVisible(true);

    viewer.setContentProvider(new ArrayContentProvider());
    viewer.setInput(AplotSelectedDataTable.getInstance().getArrayData());

    // Layout the viewer
    GridData gridData = new GridData(SWT.CENTER);
    gridData.verticalAlignment = GridData.FILL;
    gridData.horizontalSpan = 2;
    gridData.grabExcessHorizontalSpace = true;
    gridData.grabExcessVerticalSpace = true;
    gridData.horizontalAlignment = GridData.FILL;
    viewer.getControl().setLayoutData(gridData);
  return viewer;
 }

Answer 1

以下是一个可以帮助您解决布局问题的小例子：

public class TestClass extends Dialog {

    private TableViewer viewer;

    protected TestClass(Shell parentShell) {
        super(parentShell);
    }

    protected Control createDialogArea(Composite parent) {
        final Composite area = new Composite(parent, SWT.NONE);
        final GridLayout gridLayout = new GridLayout(2, true);
        gridLayout.marginWidth = 15;
        gridLayout.marginHeight = 10;
        area.setLayout(gridLayout);

        area.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));

        createButtons(area);
        createTableViewer(area);

        return area;
    }

    private void createButtons(Composite parent)
    {
        Button button1 = new Button(parent, SWT.PUSH);
        button1.setText("Button1");
        button1.setLayoutData(new GridData(SWT.CENTER, SWT.FILL, true, true));

        Button button2 = new Button(parent, SWT.PUSH);
        button2.setText("Button2");
        button2.setLayoutData(new GridData(SWT.CENTER, SWT.FILL, true, true));
    }

    private void createTableViewer(Composite parent) {
        viewer = new TableViewer(parent, SWT.MULTI | SWT.H_SCROLL
                | SWT.V_SCROLL | SWT.FULL_SELECTION | SWT.BORDER);
        createColumns(parent);
        final Table table = viewer.getTable();
        table.setHeaderVisible(true);
        table.setLinesVisible(true);

        viewer.setContentProvider(new ArrayContentProvider());

        // Layout the viewer
        GridData gridData = new GridData(SWT.CENTER, SWT.FILL, true, true);
        gridData.horizontalSpan = 2;
        table.setLayoutData(gridData);
    }

    private void createColumns(Composite parent)
    {
        TableViewerColumn viewerColumn = new TableViewerColumn(viewer, SWT.NONE);
        final TableColumn column = viewerColumn.getColumn();
        column.setText("Title");
        column.setWidth(100);
        column.setResizable(true);
        column.setMoveable(false);
    }

    public static void main(String[] args) {
        Display display = Display.getDefault();
        final Shell shell = new Shell(display);

        TestClass test = new TestClass(shell);

        test.open();

        while (!shell.isDisposed()) {
            if (!display.readAndDispatch())
                display.sleep();
        }
        display.dispose();
    }
}

它基本上会创建一个小Dialog，顶部有2个按钮，下方有居中 TableViewer。这应该可以让您了解如何解决问题。

TableViewer居中布局

1 个答案: