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

/**
 * create a new field
 * 
 * @param parent
 *            the parent Composite
 * @param show
 *            ho to display the label
 */
public ActiveControl(Composite parent, int displayBits, String displayName){
	super(parent, SWT.NONE);
	if ((displayBits & (DISPLAY_HORIZONTAL | HIDE_LABEL)) == DISPLAY_HORIZONTAL) {
		setLayout(new GridLayout(3, false));
	} else {
		setLayout(new GridLayout(2, false));
	}
	flags = displayBits;
	labelContents = displayName == null ? "" : displayName;
	if ((displayBits & HIDE_LABEL) == 0) {
		lbl = new Label(this, SWT.NONE);
		lbl.setText(displayName);
		
		setData(PROP_DISPLAYNAME, displayName);
		controllers = new Composite(this, SWT.NONE);
		// controllers.setBackground(Desk.getColor(Desk.COL_GREEN));
		GridData gd = new GridData(SWT.RIGHT, SWT.BOTTOM, false, false);
		Point size = lbl.computeSize(SWT.DEFAULT, SWT.DEFAULT);
		gd.heightHint = size.y;
		controllers.setLayoutData(gd);
		controllers.setLayout(new FillLayout());
		lbl.setLayoutData(SWTHelper.getFillGridData(1, true, 1, false));
	}
}
 

private void initialize() {
	GridData gd = new GridData();
	gd.horizontalSpan = 2;
	gd.verticalAlignment = GridData.FILL;
	gd.grabExcessVerticalSpace = true;
	gd.grabExcessHorizontalSpace = true;
	gd.horizontalAlignment = GridData.FILL;
	GridData gridData = new GridData();
	gridData.horizontalAlignment = GridData.FILL;
	gridData.grabExcessHorizontalSpace = true;
	gridData.verticalAlignment = GridData.CENTER;
	spacer = new Label(this, SWT.NONE);
	spacer.setLayoutData(gridData);
	spacer.setBackground(Display.getCurrent().getSystemColor(SWT.COLOR_LIST_BACKGROUND));
	GridLayout gridLayout = new GridLayout();
	gridLayout.numColumns = 2;
	gridLayout.verticalSpacing = 0;
	dayNumber = new Label(this, SWT.NONE);
	dayNumber.setBackground(Display.getCurrent().getSystemColor(SWT.COLOR_LIST_BACKGROUND));
	dayNumber.setForeground(Display.getCurrent().getSystemColor(SWT.COLOR_LIST_SELECTION));
	dayNumber.setText("31");
	textBounds = dayNumber.computeSize(SWT.DEFAULT, SWT.DEFAULT, true);
	this.setBackground(Display.getCurrent().getSystemColor(SWT.COLOR_LIST_BACKGROUND));
	this.setLayout(gridLayout);
	setSize(new org.eclipse.swt.graphics.Point(106, 101));
	setBackground(CELL_BACKGROUND_LIGHT);
}
 

@VisibleForTesting
void createAccountsPane(Composite accountArea) {
  for (Account account : loginService.getAccounts()) {
    Composite accountRow = new Composite(accountArea, SWT.NONE);
    Label avatar = new Label(accountRow, SWT.NONE);
    Composite secondColumn = new Composite(accountRow, SWT.NONE);
    Label name = new Label(secondColumn, SWT.LEAD);
    Label email = new Label(secondColumn, SWT.LEAD);
    Label separator = new Label(accountArea, SWT.HORIZONTAL | SWT.SEPARATOR);
    separator.setLayoutData(new GridData(SWT.FILL, SWT.BEGINNING, true, false));

    // <Avatar size> = 3 * <email label height>
    Point emailSize = email.computeSize(SWT.DEFAULT, SWT.DEFAULT);
    int avatarSize = emailSize.y * 3;

    GridDataFactory.swtDefaults().hint(avatarSize, avatarSize).applyTo(avatar);
    GridLayoutFactory.fillDefaults().numColumns(2).applyTo(accountRow);
    GridLayoutFactory.fillDefaults().generateLayout(secondColumn);

    if (account.getName() != null) {
      name.setText(account.getName());
    }
    email.setText(account.getEmail());  // email is never null.

    if (account.getAvatarUrl() != null) {
      try {
        imageLoader.loadImage(account.getAvatarUrl() + "=s" + avatarSize, avatar);
      } catch (MalformedURLException ex) {
        logger.log(Level.WARNING, "malformed avatar image URL", ex);
      }
    }
  }
}
 

/**
 * 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;
}
 

@Override
public Point create() {
    Composite parent = getParent();
    Table<ToolTipString, ToolTipString, ToolTipString> model = getModel();
    if (parent == null || model.size() == 0) {
        // avoid displaying empty tool tips.
        return null;
    }
    setupControl(parent);
    ScrolledComposite scrolledComposite = new ScrolledComposite(parent, SWT.H_SCROLL | SWT.V_SCROLL);
    scrolledComposite.setExpandVertical(true);
    scrolledComposite.setExpandHorizontal(true);
    setupControl(scrolledComposite);

    Composite composite = new Composite(scrolledComposite, SWT.NONE);
    fComposite = composite;
    composite.setLayout(new GridLayout(3, false));
    setupControl(composite);
    Set<ToolTipString> rowKeySet = model.rowKeySet();
    for (ToolTipString row : rowKeySet) {
        Set<Entry<ToolTipString, ToolTipString>> entrySet = model.row(row).entrySet();
        for (Entry<ToolTipString, ToolTipString> entry : entrySet) {
            Label nameLabel = new Label(composite, SWT.NO_FOCUS);
            nameLabel.setText(entry.getKey().toString());
            setupControl(nameLabel);
            Label separator = new Label(composite, SWT.NO_FOCUS | SWT.SEPARATOR | SWT.VERTICAL);
            GridData gd = new GridData(SWT.CENTER, SWT.CENTER, false, false);
            gd.heightHint = nameLabel.computeSize(SWT.DEFAULT, SWT.DEFAULT).y;
            separator.setLayoutData(gd);
            setupControl(separator);
            Label valueLabel = new Label(composite, SWT.NO_FOCUS);
            valueLabel.setText(entry.getValue().toString());
            setupControl(valueLabel);
        }
    }
    scrolledComposite.setContent(composite);
    Point preferredSize = computePreferredSize();
    scrolledComposite.setMinSize(preferredSize.x, preferredSize.y);
    return preferredSize;
}
 

/**
 * 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 MessageModal(Shell parent, String title, String message) {
	display = Display.getDefault();
	yuneImage = new Image(display, Main.class.getClassLoader().getResourceAsStream("YuneIcon_100x100.png"));
	
	dialogShell = new Shell(parent, SWT.PRIMARY_MODAL | SWT.DIALOG_TRIM);
	dialogShell.setText(title);
	dialogShell.setImage(yuneImage);
	
	dialogShell.addListener(SWT.CLOSE, new Listener() {

		@Override
		public void handleEvent(Event event) {
			event.doit = false;
		}
		
	});
	
	FormLayout mainLayout = new FormLayout();
	mainLayout.marginWidth = 5;
	mainLayout.marginHeight = 5;
	dialogShell.setLayout(mainLayout);
	
	imageLabel = new Label(dialogShell, SWT.NONE);
	imageLabel.setImage(yuneImage);
	
	FormData imageData = new FormData(100, 100);
	imageData.left = new FormAttachment(0, 10);
	imageData.top = new FormAttachment(0, 10);
	imageLabel.setLayoutData(imageData);
	
	contentGroup = new Composite(dialogShell, SWT.NONE);
	FormLayout contentLayout = new FormLayout();
	contentLayout.marginTop = 5;
	contentLayout.marginLeft = 5;
	contentLayout.marginBottom = 5;
	contentLayout.marginRight = 5;
	contentGroup.setLayout(contentLayout);
	
	titleLabel = new Label(contentGroup, SWT.LEFT);
	titleLabel.setText(title);
	FontData normalFont = titleLabel.getFont().getFontData()[0];
	Font boldFont = new Font(display, normalFont.getName(), normalFont.getHeight(), SWT.BOLD);
	titleLabel.setFont(boldFont);
	
	FormData titleData = new FormData();
	titleData.top = new FormAttachment(0, 0);
	titleData.left = new FormAttachment(0, 0);
	titleData.right = new FormAttachment(100, 0);
	titleLabel.setLayoutData(titleData);
	
	descriptionLabel = new Label(contentGroup, SWT.LEFT | SWT.WRAP);
	descriptionLabel.setText(message);
	
	FormData descriptionData = new FormData();
	descriptionData.left = new FormAttachment(titleLabel, 0, SWT.LEFT);
	descriptionData.right = new FormAttachment(titleLabel, 0, SWT.RIGHT);
	descriptionData.top = new FormAttachment(titleLabel, 10);
	descriptionData.bottom = new FormAttachment(100, -5);
	Point expectedSize = descriptionLabel.computeSize(SWT.DEFAULT, SWT.DEFAULT);
	descriptionData.width = Math.max(200, expectedSize.x);
	descriptionData.height = Math.max(60, expectedSize.y);
	descriptionLabel.setLayoutData(descriptionData);
	
	FormData groupData = new FormData();
	groupData.left = new FormAttachment(imageLabel, 10);
	groupData.top = new FormAttachment(imageLabel, 0, SWT.TOP);
	groupData.right = new FormAttachment(100, -10);
	contentGroup.setLayoutData(groupData);
	
	layoutSize();
	Rectangle parentBounds = parent.getBounds();
	Rectangle dialogBounds = dialogShell.getBounds();
	
	dialogShell.setLocation(parentBounds.x + (parentBounds.width - dialogBounds.width) / 2, parentBounds.y + (parentBounds.height - dialogBounds.height) / 2);
}
 

private int computeMaxWidth( Label label )
{
	int widthHint = label.computeSize( -1, -1 ).x
			- label.getBorderWidth( );
	return widthHint > this.maxWidth ? widthHint : this.maxWidth;
}
 

private void createArgumentUI( )
{
    IAggrFunction function = getSelectedFunction( );
    if ( function != null )
    {
        IParameterDefn[] params = function.getParameterDefn( );
        if ( params != null && params.length > 0 )
        {

            ( (GridData) paramsComposite.getLayoutData( ) ).exclude = false;
            ( (GridData) paramsComposite.getLayoutData( ) ).heightHint = SWT.DEFAULT;

            int width = getMaxLabelWidth( parent );

            for ( final IParameterDefn param : params )
            {
                String paramName =      DataAdapterUtil.adaptArgumentName(param.getName( ) );
                //Expression is handled as measureExpression 
                if ( ARGUMENT_EXPRESSION.equals( paramName ) )
                {
                    continue;
                }
                        
                Label lblParam = new Label( paramsComposite, SWT.NONE );
                lblParam.setText(
                        param.getDisplayName( ) + Messages.getString( "MeasureDialog.Text.Colon" ) ); //$NON-NLS-1$
                GridData gd = new GridData( );
                gd.widthHint = lblParam.computeSize( SWT.DEFAULT, SWT.DEFAULT ).x;
                if ( gd.widthHint < width )
                    gd.widthHint = width;
                lblParam.setLayoutData( gd );

                if ( param.isDataField( ) )
                {
                    createComboControl( paramsComposite, param );
                }

                else
                {
                    createTextControl( paramsComposite, param );
                }
            }
        }
    }
}