6

I have ScrolledComposite which allows only vertical scrolling. (heighthint = 400).

Within this ScrolledComposite, I have another CompositeA (height may exceed 400 for scrolling) to store all other widgets.

I have a very long label (with SWT.WRAP enabled). But instead of wrapping, it is always showing in a single line. I want this label to wrap according to the width of its parent (CompositeA)

I forgot to add that this CompositeA is a 2 column GridLayout with makeColumnsEqualWidth = true.

Here is my code:

public void createPartControl(Composite parent) {
    // TODO Auto-generated method stub

    Display display = parent.getDisplay();

    toolkit = new FormToolkit(display);
    form = toolkit.createForm(parent);
    form.setText("ABC");

    Composite body = form.getBody();

    TableWrapLayout layout = new TableWrapLayout();
    layout.numColumns = 2;
    body.setLayout(layout);

    Label header1 = toolkit.createLabel(body, "ABC: ");
    Font font = new Font(display, "Arial", 11, SWT.BOLD);
    header1.setFont(font);

    Label header2 = toolkit.createLabel(body, "XYZ",
            SWT.WRAP);
    font = new Font(display, "Arial", 11, SWT.NONE);
    header2.setFont(font);

    TableWrapData wd = new TableWrapData(TableWrapData.FILL_GRAB);      
    header2.setLayoutData(wd);

    form.getBody().setBackground(
            form.getBody().getDisplay()
                    .getSystemColor(SWT.COLOR_WIDGET_BACKGROUND));

    // Scrolled composite
    ScrolledComposite sc = new ScrolledComposite(body, SWT.BORDER_SOLID
            | SWT.V_SCROLL);
    sc.setAlwaysShowScrollBars(true);
    sc.setBackground(new Color(display, 50,255,155));


    wd = new TableWrapData(TableWrapData.FILL); 
    wd.heightHint = 360;
    wd.colspan = 2;
    wd.grabHorizontal = false;
    sc.setLayoutData(wd);

    sc.setLayout(new TableWrapLayout());

    Composite innerComposite = toolkit.createComposite(sc);
    sc.setContent(innerComposite);

    innerComposite.setLayout(new TableWrapLayout());
    innerComposite.setBackground(new Color(display, 255,50,50));

    Section section = toolkit.createSection(innerComposite,
            Section.DESCRIPTION | Section.TITLE_BAR | Section.EXPANDED);
    wd = new TableWrapData(TableWrapData.FILL);
    wd.maxWidth = 600; // don't want to hardcode this value

    section.setLayoutData(wd);
    section.setText("Section");
    section.setDescription("A not so long description......................");

    // Composite for Section
    Composite sectionClient = toolkit.createComposite(section);
    layout = new TableWrapLayout();
    layout.numColumns = 2;
    layout.makeColumnsEqualWidth = true;
    sectionClient.setLayout(layout);

    toolkit.createButton(sectionClient, "Button 1", SWT.RADIO);

    Label rightDesc = toolkit
            .createLabel(
                    sectionClient,
                    "A very long long long long long long long long long long long long long long long long long long long long desc that needs wrapping",
                    SWT.WRAP);
    font = new Font(display, "Arial", 10, SWT.ITALIC);
    rightDesc.setFont(font);
    wd = new TableWrapData();
    wd.rowspan = 2;
    rightDesc.setLayoutData(wd);

    Combo comboDropDown = new Combo(sectionClient, SWT.DROP_DOWN
            | SWT.BORDER);
    comboDropDown.setText("DDL");
    comboDropDown.add("1");
    comboDropDown.add("2");
    comboDropDown.add("3");

    Label lineBreak = toolkit.createSeparator(sectionClient, SWT.SEPARATOR
            | SWT.HORIZONTAL);
    wd = new TableWrapData(TableWrapData.FILL);
    wd.colspan = 2;
    lineBreak.setLayoutData(wd);

    /***********************/

    toolkit.createButton(sectionClient, "Button 2", SWT.RADIO);

    Label rightDesc2 = toolkit
            .createLabel(
                    sectionClient,
                    "A long long long long long long long long long long long long long long long long long long long long desc that needs wrapping",
                    SWT.WRAP);
    font = new Font(display, "Arial", 10, SWT.ITALIC);
    rightDesc2.setFont(font);
    wd = new TableWrapData(TableWrapData.FILL);
    wd.rowspan = 3;
    rightDesc2.setLayoutData(wd);

    toolkit.createLabel(sectionClient, "Desc",
            SWT.WRAP);
    toolkit.createText(sectionClient, "hello world", SWT.NONE);

    section.setClient(sectionClient);

    innerComposite.pack();

}

If you run it, you can see a green scrolledcomposite and a red composite. I want the red composite width to fill to the width of the scrolledcomposite relatively without hardcoding maxWidth = 600.

4

5 回答 5

5

我在我的布局中遇到了同样的问题，并找到了这个有用的答案。

由于“它不是错误，而是功能”，请在此处的评论 #19 中尝试此答案。

我为我的标签使用以下代码行。

Label tip = new Label(shell, SWT.WRAP | SWT.BORDER | SWT.LEFT);
final GridData data = new GridData(SWT.HORIZONTAL, SWT.TOP, true, false, 1, 1);
tip.setLayoutData(data);
tip.setText("Here stands my long, long and much more longer text...");
于 2015-01-04T06:00:41.330 回答
1

在创建标签时尝试添加 SWT.WRAP。它对我有用。

Label label = new Label(parent, SWT.WRAP);
于 2014-07-01T10:01:00.977 回答
0

令人惊讶的是，TableWrapLayout经理不会指望水平滚动的复合材料。为了保持Form工具包上的布局，应该使用。我刚刚做了一个代码示例，上面可以做些什么。

public void createPartControl(Composite parent) {
    // TODO Auto-generated method stub

    Display display = parent.getDisplay();

    toolkit = new FormToolkit(display);
    form = toolkit.createForm(parent);
    form.setText("ABC");

    Composite body = form.getBody();

    TableWrapLayout layout = new TableWrapLayout();
    layout.numColumns = 2;
    body.setLayout(layout);

    Label header1 = toolkit.createLabel(body, "ABC: ");
    Font font = new Font(display, "Arial", 11, SWT.BOLD);
    header1.setFont(font);

    Label header2 = toolkit.createLabel(body, "XYZ", SWT.WRAP);
    font = new Font(display, "Arial", 11, SWT.NONE);
    header2.setFont(font);

    TableWrapData wd = new TableWrapData();      
    header2.setLayoutData(wd);

    body.setBackground(body.getDisplay().getSystemColor(SWT.COLOR_WIDGET_BACKGROUND));

    // Scrolled composite
    Composite sc = toolkit.createComposite(body, SWT.BORDER_SOLID | SWT.V_SCROLL);
    sc.setBackground(new Color(display, 50,255,155));
    layout = new TableWrapLayout();    
    sc.setLayout(layout);

    wd = new TableWrapData(TableWrapData.FILL_GRAB); 
    wd.heightHint = 360;
    wd.colspan = 2;
    sc.setLayoutData(wd);

    Composite innerComposite = toolkit.createComposite(sc);

    layout = new TableWrapLayout();
    innerComposite.setLayout(layout);
    innerComposite.setBackground(new Color(display, 255,50,50));

    wd = new TableWrapData(TableWrapData.FILL_GRAB); 
    innerComposite.setLayoutData(wd);

    Section section = toolkit.createSection(innerComposite,
            Section.DESCRIPTION | Section.TITLE_BAR | Section.TWISTIE | Section.EXPANDED);

    section.setText("Section");
    section.setDescription("A not so long description......................");

    wd = new TableWrapData(TableWrapData.FILL_GRAB);
    // wd.maxWidth = 600; // don't want to hardcode this value
    section.setLayoutData(wd);


    // Composite for Section
    Composite sectionClient = toolkit.createComposite(section);
    layout = new TableWrapLayout();
    layout.numColumns = 2;
    // layout.makeColumnsEqualWidth = true;
    sectionClient.setLayout(layout);
    section.setClient(sectionClient);

    wd = new TableWrapData(TableWrapData.FILL_GRAB); 
    sectionClient.setLayoutData(wd);

    Label rightDesc = toolkit.createLabel(sectionClient,
                    "A very long long long long long long long long long long long long long long long long long long long long desc that needs wrapping",
                    SWT.WRAP);
    font = new Font(display, "Arial", 10, SWT.ITALIC);
    rightDesc.setFont(font);
    wd = new TableWrapData();
    wd.colspan = 2;
    rightDesc.setLayoutData(wd);

    Combo comboDropDown = new Combo(sectionClient, SWT.DROP_DOWN | SWT.BORDER);
    comboDropDown.setText("DDL");
    comboDropDown.add("1");
    comboDropDown.add("2");
    comboDropDown.add("3");

    Label lineBreak = toolkit.createSeparator(sectionClient, SWT.SEPARATOR | SWT.HORIZONTAL);
    wd = new TableWrapData(TableWrapData.FILL_GRAB);
    lineBreak.setLayoutData(wd);
        //
        //    /***********************/
        //
    Button button1 = toolkit.createButton(sectionClient, "Button 1", SWT.RADIO);
      wd = new TableWrapData();
      wd.colspan = 2;
      button1.setLayoutData(wd);

    Button button2 = toolkit.createButton(sectionClient, "Button 2", SWT.RADIO);
      wd = new TableWrapData();
      wd.colspan = 2;
      button2.setLayoutData(wd);

    Label rightDesc2 = toolkit.createLabel(sectionClient,
                    "A long long long long long long long long long long long long long long long long long long long long desc that needs wrapping",
                    SWT.WRAP);
    font = new Font(display, "Arial", 10, SWT.ITALIC);
    rightDesc2.setFont(font);
    wd = new TableWrapData();
    wd.colspan = 2;
    rightDesc2.setLayoutData(wd);

    Label desc = toolkit.createLabel(sectionClient, "Desc:");
    Text hello = toolkit.createText(sectionClient, "hello world");
    wd = new TableWrapData(TableWrapData.FILL_GRAB);
    hello.setLayoutData(wd);
}
于 2012-08-24T09:00:35.500 回答
0

我可能记错了，但我记得当文本更改时我必须重新布局复合材料。这使文本换行。

于 2012-08-02T07:08:03.270 回答
0

如果您想换行长文本标签，SWT.WRAP 是不够的。如果您未在布局中指定widthHint ，则标签默认不会换行其文本。这对我有用：

Label label = new Label(parent, SWT.WRAP);
label.setText("very very long text....");
GridData gd = new GridData(SWT.FILL, SWT.TOP, true, false, 1, 1);
gd.widthHint = 200;
label.setLayoutData(gd);
于 2020-07-08T07:42:05.967 回答