如何填充 ScrolledComposite? [英] How to fill a ScrolledComposite?

问题描述

我有一个从 ScrolledComposite 扩展的类，在这个类中我创建了一个复合材料，用于填充父级 ScrolledComposite.但是每当我将标签添加到内部复合材料时，它只会包装到右上角.我希望我的内部 Composite 完全填满外部 ScrolledComposite.有没有办法做到这一点?

I have a class extending from ScrolledComposite, within this class I have created a Composite which is intended to fill the parent ScrolledComposite. But whenever I add labels to the inner composite it wraps to the upper right corner only. I want my inner Composite to completely fill the outer ScrolledComposite. Is there a way to do this?

    public class Container extends ScrolledComposite {

    final Composite comp;
    Label nameLabel, sizeLabel, dateLabel;
    ArrayList<Label> entrySize, date;
    ArrayList<SimpleEntry> entry;
    Color white;
    Font font;

    public Container(Composite parent, int style) {
        super(parent, style);
        white = new Color(getDisplay(), 255, 255, 255);
        font = new Font(getDisplay(), "Arial", 16, SWT.BOLD);
        setBackground(white);
        setLayout(new GridLayout(1, false));

        comp = new Composite(this, SWT.BORDER);
        GridData compData = new GridData(SWT.FILL, SWT.FILL, true, true);
        comp.setLayoutData(compData);
        setContent(comp);
        comp.setBackground(white);
        comp.setLayout(new GridLayout(3, false));

        nameLabel = new Label(comp, SWT.BOLD);
        sizeLabel = new Label(comp, SWT.BOLD);
        dateLabel = new Label(comp, SWT.BOLD);

        GridData d1 = new GridData(SWT.CENTER, SWT.CENTER, true, false);
        nameLabel.setLayoutData(d1);

        GridData d2 = new GridData(SWT.CENTER, SWT.CENTER, true, false);
        sizeLabel.setLayoutData(d2);

        GridData d3 = new GridData(SWT.CENTER, SWT.CENTER, true, false);
        dateLabel.setLayoutData(d3);

        nameLabel.setBackground(white);
        sizeLabel.setBackground(white);
        dateLabel.setBackground(white);

        nameLabel.setText("Name");
        sizeLabel.setText("Size");
        dateLabel.setText("Last Modified");

        nameLabel.setFont(font);
        sizeLabel.setFont(font);
        dateLabel.setFont(font);

        comp.setSize(comp.computeSize(SWT.DEFAULT, SWT.DEFAULT));
        comp.layout();

        addDisposeListener(new DisposeListener() {
            @Override
            public void widgetDisposed(DisposeEvent e) {
                Container.this.widgetDisposed(e);
            }
        });
    }
}

推荐答案

只需在构造函数的末尾添加这些行:

Just add these lines at the end of the constructor:

this.setMinSize(comp.computeSize(SWT.DEFAULT, SWT.DEFAULT));
this.setExpandHorizontal(true);
this.setExpandVertical(true);

<小时>

注意事项:

---

Notes:

• 记得dispose()你自己创建的所有资源(Color、Font、...)
• 考虑使用display.getSystemColor(SWT.COLOR_WHITE)和display.getSystemFont()来使用系统资源(不需要处理).

• Remember to dispose() all resources you create yourself (Color, Font, ...)
• Consider using system resources (no need to dispose) by using display.getSystemColor(SWT.COLOR_WHITE) and display.getSystemFont().

这篇关于如何填充 ScrolledComposite?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！