setToolTipText自动换行 .

String sReturn = System.getProperty("line.separator");
String s = "abcd" + sReturn + "efg";

sReturn是换行符

 

package test.ftp00;

import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.graphics.Rectangle;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Link;
import org.eclipse.swt.widgets.Monitor;
import org.eclipse.swt.widgets.Shell;

public class LinkWindow {
    Display display;
    Shell shell;
    GridLayout gridLayout;
    GridData layoutData;
    Composite composite;
    static int height = 0;
    Color color;
    Link link;

    public LinkWindow() {

    }

    public void showGui() {
        display = Display.getDefault();
        shell = new Shell(display);
        // 初始化shell
        initShell();
        composite = new Composite(shell, SWT.None);
        gridLayout = new GridLayout();
        composite.setLayout(gridLayout);
        color = display.getSystemColor(SWT.COLOR_WHITE);
        composite.setcolor);

        Button button = new Button(composite, SWT.PUSH);
        button.setText("你好");

        String sReturn = System.getProperty("line.separator");
        String s = "abcd" + sReturn + "efg";
        button.setToolTipText(s);

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

    /**
     * 设置窗口的标题、位置、大小、图标
     *
     * @return Shell
     */
    public Shell initShell() {
        shell.setText("添加内容");
        shell.setSize(150, 200);

        Monitor monitor = shell.getMonitor();
        Rectangle bounds = monitor.getBounds();
        Rectangle rect = shell.getBounds();
        int x = bounds.width - rect.width;
        int y = bounds.y;

        shell.setLocation(x, y);

        shell.setLayout(new FillLayout());
        return shell;
    }

    public static void main(String[] args) {

        new LinkWindow().showGui();
    }
}