Java Code Examples for org.eclipse.swt.widgets.Label#getLayoutData()

public void setVisible(boolean visible, Composite parent) {
    Label labelControl = getLabelControl(parent);
    Text textControl = getTextControl(parent);
    labelControl.setVisible(visible);
    textControl.setVisible(visible);

    Object layoutData = labelControl.getLayoutData();
    if (layoutData instanceof GridData) {
        ((GridData) layoutData).exclude = !visible;
    }
    layoutData = textControl.getLayoutData();
    if (layoutData instanceof GridData) {
        ((GridData) layoutData).exclude = !visible;
    }

}
 

public void setVisible(boolean visible, Composite parent) {
    if (!useGroup) {
        Label labelControl = getLabelControl(parent);
        labelControl.setVisible(visible);
        Object layoutData = labelControl.getLayoutData();
        if (layoutData instanceof GridData) {
            ((GridData) layoutData).exclude = !visible;
        }

        radioBox.setVisible(visible);
        layoutData = radioBox.getLayoutData();
        if (layoutData instanceof GridData) {
            ((GridData) layoutData).exclude = !visible;
        }
    } else {
        // TODO: Implement when needed.
    }

}
 

/**
 * Creates the status and close section of the dialog.
 *
 * @param parent
 *            the parent composite
 * @return the status and close button
 */
private Composite createStatusAndCloseButton(Composite parent) {

    Composite panel = new Composite(parent, SWT.NULL);
    GridLayout layout = new GridLayout();
    layout.numColumns = 2;
    layout.marginWidth = 0;
    layout.marginHeight = 0;
    panel.setLayout(layout);

    fStatusLabel = new Label(panel, SWT.LEFT);
    fStatusLabel.setText(Messages.TimeGraphFindDialog_StatusWrappedLabel);
    setGridData(fStatusLabel, SWT.FILL, true, SWT.CENTER, false);
    GridData gd = (GridData) fStatusLabel.getLayoutData();
    gd.widthHint = fStatusLabel.computeSize(SWT.DEFAULT, SWT.DEFAULT).x;
    fStatusLabel.setText("");  //$NON-NLS-1$

    Composite buttonSection = new Composite(panel, SWT.NULL);
    GridLayout buttonLayout = new GridLayout();
    buttonLayout.numColumns = 2;
    buttonSection.setLayout(buttonLayout);

    String label = Messages.TimeGraphFindDialog_CloseButtonLabel;
    Button closeButton = createButton(buttonSection, 101, label, false);
    setGridData(closeButton, SWT.RIGHT, false, SWT.BOTTOM, false);

    fFindNextButton = makeButton(buttonSection, Messages.TimeGraphFindDialog_FindNextButtonLabel, 102, true, new SelectionAdapter() {
        @Override
        public void widgetSelected(SelectionEvent e) {
            performSearch(((e.stateMask & SWT.SHIFT) != 0) ^ isForwardSearch());
            updateFindHistory();
        }
    });
    setGridData(fFindNextButton, SWT.FILL, true, SWT.FILL, false);

    return panel;
}
 

/**
 * Update the width of the label to take into account the error font. Only works for labels in a grid layout
 * 
 * @param label
 * @param errorFont
 */
public static void updateErrorLabelWidth(Label label, Font errorFont)
{
	Object layoutData = label.getLayoutData();
	if (layoutData instanceof GridData)
	{
		Font currentFont = label.getFont();
		label.setFont(errorFont);
		((GridData) layoutData).widthHint = label.computeSize(SWT.DEFAULT, SWT.DEFAULT).x;
		label.setFont(currentFont);
	}
}
 

public static Label createLabel(Composite parent, String text, int span, int indent, boolean bold, int fill) {
    Label label = createLabel(parent, text, span, SWT.NONE, fill);
    if (bold) {
        label.setFont(JFaceResources.getDialogFontDescriptor().withStyle(SWT.BOLD).createFont(null));
    }
    GridData gridData = (GridData) label.getLayoutData();
    gridData.horizontalIndent = indent;    

    return label;
}
 

private int getLabelWidth( Label label )
{
    Object layout = label.getLayoutData( );
    if ( layout instanceof GridData )
    {
        if ( ( (GridData) layout ).horizontalSpan == 1 )
        {
            return label.getBounds( ).width - label.getBorderWidth( ) * 2;
        }
    }
    return 0;
}
 

/**
 * New error message.
 *
 * @param twoCol the two col
 * @param span the span
 */
protected void newErrorMessage(Composite twoCol, int span) {
  Label m = new Label(twoCol, SWT.WRAP);
  m.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
  ((GridData) m.getLayoutData()).horizontalSpan = span;
  ((GridData) m.getLayoutData()).widthHint = convertHorizontalDLUsToPixels(IDialogConstants.MINIMUM_MESSAGE_AREA_WIDTH);
  errorMessageUI = m;
}
 

private void createHeader(Composite composite, boolean editable) {
	UI.filler(composite);
	if (editable) {
		UI.filler(composite);
	}
	for (int i = 1; i <= getModel().getScoreCount(); i++) {
		String scoreLabel = getModel().getScoreLabel(i);
		if (scoreLabel == null) {
			scoreLabel = Integer.toString(i);
		}
		if (editable) {
			Text labelText = createTextCell(composite, 1, 8);
			labelText.setText(scoreLabel);
			int pos = i;
			labelText.addModifyListener((e) -> {
				getModel().setScoreLabel(pos, labelText.getText());
				getEditor().setDirty(true);
			});
			scoreTexts.put(i, labelText);
			commentControl(composite, "scores[" + i + "]");
		} else {
			Label label = UI.formLabel(composite, scoreLabel);
			label.setToolTipText(scoreLabel);
			setGridData(label, 1, 8);
			((GridData) label.getLayoutData()).horizontalAlignment = SWT.CENTER;
			Text scoreText = scoreTexts.get(i);
			scoreText.addModifyListener((e) -> {
				label.setText(scoreText.getText());
				label.setToolTipText(scoreText.getText());
			});
			UI.filler(composite);
		}
	}
}
 

public void resizeLabel(final int width) {
	final Label l = getLabel();
	if (l != null) {
		((GridData) l.getLayoutData()).widthHint = width;
	}
}
 

/**
 * Creates a wrapping label
 * 
 * @param parent
 *            the parent composite to add this label to
 * @param text
 *            the text to be displayed in the label
 * @param hspan
 *            the horizontal span that label should take up in the parent composite
 * @param wrapwidth
 *            the width hint that the label should wrap at
 * @return a new label that wraps at a specified width
 */
public static Label createWrapLabel(Composite parent, String text, int hspan, int wrapwidth)
{
	Label l = createLabel(parent, text, 0, parent.getFont(), hspan);
	((GridData) l.getLayoutData()).widthHint = wrapwidth;

	return l;
}