CODEWITHSUNDEEP
javaswtjface
Naveen Kocherla
Naveen Kocherla

Reputation: 419

Display some part of text in bold and some part in italic in SWT label

I have to show some warning message to the user like

"If you restore data the updated changes will be lost, So recheck once"

In german language also I have to same string with bold and italic.

In both languages the dialog height and width should be same

public class BoldTextMessageDialog extends ZedisTrayDialog {

  private Composite container;
  private String firstSring;
  private String secondString;
  private String boldString;
  private Button restoreButton;
  private Button cancelButton;

  public BoldTextMessageDialog(Shell shell, String firstSring, String   secondString, String boldString) {
    super(shell);
    this.firstSring = firstSring;
    this.secondString = secondString;
    this.boldString = boldString;
  }

  @Override
  protected Control createDialogArea(Composite parent) {

    container = new Composite(parent, SWT.NONE);
    container.setLayout(new FormLayout());
    GridData gd = new GridData(SWT.FILL, SWT.FILL, true, true);

    gd.heightHint = 300;
    gd.widthHint = 500;
    container.setLayoutData(gd);

    Label warningLabel = new Label(container, SWT.NONE);
    warningLabel.setImage(parent.getDisplay().getSystemImage(SWT.ICON_WARNING));

    FormData fd = new FormData();
    fd.left = new FormAttachment(0, 5);
    fd.top = new FormAttachment(0, 5);
    warningLabel.setLayoutData(fd);

    Label firstLabel = new Label(container, SWT.WRAP);
    firstLabel.setText(firstSring);

    fd = new FormData();
    fd.left = new FormAttachment(warningLabel, 10);
    fd.right = new FormAttachment(100, 0);
    fd.top = new FormAttachment(0, 10);
    firstLabel.setLayoutData(fd);

    Label secLabel = new Label(container, SWT.WRAP);
    secLabel.setText(boldString);
    secLabel.setFont(FontCache.getBoldFont());

    fd = new FormData();
    fd.top = new FormAttachment(0, 25);
    fd.left = new FormAttachment(0, 48);
    secLabel.setLayoutData(fd);

    Label thirdLabel = new Label(container, SWT.WRAP);
    thirdLabel.setText(secondString);

    fd = new FormData();
    fd.top = new FormAttachment(0, 25);
    fd.left = new FormAttachment(secLabel, 3);
    fd.right = new FormAttachment(100, -5);
    thirdLabel.setLayoutData(fd);

    return parent;
  }

}

This is what I tried, but the problem is for german and english both italic and bold text are coming at different places, so for same size they are not suitable. If I use different sizes its ok.

Upvotes: 3

Views: 3320

Answers (1)

Rüdiger Herrmann
Rüdiger Herrmann

Reputation: 20985

To display styled text in SWT you can use the Browser widget or StyledText widget. In both cases you likely need to change the default appearance and behavior to be label-like (i.e. background color, read-only)

Browser Widget

Browser browser = new Browser( parent, SWT.NONE );
browser.setText( "If you restore data the changes will be <b>lost</b>, So <i>recheck</i> once" );

Styled Text

StyledText text = new StyledText( parent, SWT.NONE );
text.setText( "If you restore data the changes will be lost, So recheck once" );

Through StyleRanges you can define how portions of the text should be formatted. A style range has a start and a length that specifies the part of the text it is applied to and a TextStyle to control the style attributes to be applied. To let the first char appear bold the code would look like this: 

StyleRange styleRange = new StyleRange( 0, 1, null, null, SWT.BOLD );
text.setStyleRanges( new StyleRange[]{ styleRange } );

FormText

A further option, if you have a dependency on org.eclipse.ui.forms already, is to use the FormText widget. It supports HTML like markup within the text, similar to the browser widget. This is probably the most label-like widget but drags in an additional dependency.

Upvotes: 7

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