org.eclipse.swt.widgets.Table#setBackground ( )源码实例Demo

/**
 * Create a column that displays data
 */
private void createTable() {
	final Table table = new Table(composite, SWT.SINGLE | SWT.H_SCROLL | SWT.FULL_SELECTION | SWT.BORDER);
	new TableColumn(table, SWT.LEFT);

	table.setLayoutData(new RowData(150, 175));
	columns.add(table);

	addTableListeners(table);

	if (super.getBackground() != null && super.getBackground().getRed() != 240 && super.getBackground().getGreen() != 240 && super.getBackground().getBlue() != 240) {
		table.setBackground(super.getBackground());
	}
	table.setBackgroundImage(super.getBackgroundImage());
	table.setBackgroundMode(super.getBackgroundMode());
	table.setCursor(super.getCursor());
	table.setFont(super.getFont());
	table.setForeground(super.getForeground());
	table.setMenu(super.getMenu());
	table.setToolTipText(super.getToolTipText());

}
 

/**
 * creates the popup shell.
 *
 * @param selectionIndex
 */
void createPopup(final int selectionIndex) {
	// create shell and table
	popup = new Shell(getShell(), SWT.NO_TRIM | SWT.ON_TOP);

	// create table
	table = new Table(popup, SWT.SINGLE | SWT.FULL_SELECTION);

	if (font != null) {
		table.setFont(font);
	}
	if (foreground != null) {
		table.setForeground(foreground);
	}
	if (background != null) {
		table.setBackground(background);
	}

	// Add popup listeners
	final int[] popupEvents = { SWT.Close, SWT.Paint, SWT.Deactivate, SWT.Help };
	for (final int popupEvent : popupEvents) {
		popup.addListener(popupEvent, listener);
	}

	// add table listeners
	final int[] tableEvents = { SWT.MouseUp, SWT.Selection, SWT.Traverse, SWT.KeyDown, SWT.KeyUp, SWT.FocusIn,
			SWT.Dispose };
	for (final int tableEvent : tableEvents) {
		table.addListener(tableEvent, listener);
	}

	// set the selection
	if (selectionIndex != -1) {
		table.setSelection(selectionIndex);
	}
}
 

protected Table createEmptyTable(Composite composite, int horizontalSpan)
{
    Table table = new Table(composite, SWT.None);

    GridData gridData = new GridData();
    gridData.horizontalSpan = horizontalSpan;
    gridData.verticalSpan = 1;
    gridData.widthHint = 1;
    gridData.heightHint = 1;
    table.setLayoutData(gridData);
    table.setBackground (composite.getBackground());
    return table;
}
 

void createPopup( Object[] items, int selectionIndex )
{
	// create shell and list
	popup = new Shell( getShell( ), SWT.NO_TRIM | SWT.ON_TOP );

	table = new Table( popup, SWT.SINGLE
			| SWT.V_SCROLL
			| SWT.FULL_SELECTION );
	new TableColumn( table, SWT.LEFT );
	if ( font != null )
		table.setFont( font );
	if ( foreground != null )
		table.setForeground( foreground );
	if ( background != null )
		table.setBackground( background );

	label.setBackground( table.getBackground( ) );
	label.setForeground( table.getForeground( ) );
	label.setFont( table.getFont( ) );

	int[] popupEvents = {
			SWT.Close, SWT.Paint, SWT.Deactivate
	};
	for ( int i = 0; i < popupEvents.length; i++ )
		popup.addListener( popupEvents[i], listener );
	int[] tableEvents = {
			SWT.MouseUp,
			SWT.Selection,
			SWT.Traverse,
			SWT.KeyDown,
			SWT.KeyUp,
			SWT.FocusIn,
			SWT.FocusOut,
			SWT.Dispose
	};
	for ( int i = 0; i < tableEvents.length; i++ )
		table.addListener( tableEvents[i], listener );
}
 

/**
 * creates the popup shell.
 * @param selectionIndex
 */
void createPopup(int selectionIndex) {
    // create shell and table
    popup = new Shell(getShell(), SWT.NO_TRIM | SWT.ON_TOP);

    // create table
    table = new Table(popup, SWT.SINGLE | SWT.FULL_SELECTION);

    if (font != null)
        table.setFont(font);
    if (foreground != null)
        table.setForeground(foreground);
    if (background != null)
        table.setBackground(background);

    // Add popup listeners
    int[] popupEvents = { SWT.Close, SWT.Paint, SWT.Deactivate };
    for (int i = 0; i < popupEvents.length; i++) {
        popup.addListener(popupEvents[i], listener);
    }

    // add table listeners
    int[] tableEvents = { SWT.MouseUp, SWT.Selection, SWT.Traverse, SWT.KeyDown, SWT.KeyUp, SWT.FocusIn,
            SWT.Dispose };
    for (int i = 0; i < tableEvents.length; i++) {
        table.addListener(tableEvents[i], listener);
    }

    // set the selection
    if (selectionIndex != -1) {
        table.setSelection(selectionIndex);
    }
}
 

/**
 * Creates a dialog area with a table of the partial matches for the current
 * key binding state. The table will be either the minimum width, or
 * <code>previousWidth</code> if it is not
 * <code>NO_REMEMBERED_WIDTH</code>.
 * 
 * @param parent
 *            The parent composite for the dialog area; must not be
 *            <code>null</code>.
 * @param partialMatches
 *            The lexicographically sorted map of partial matches for the
 *            current state; must not be <code>null</code> or empty.
 */
private final void createTableDialogArea(final Composite parent) {
    // Layout the table.
    completionsTable = new Table(parent, SWT.FULL_SELECTION | SWT.SINGLE);
    final GridData gridData = new GridData(GridData.FILL_BOTH);
    completionsTable.setLayoutData(gridData);
    completionsTable.setBackground(parent.getBackground());
    completionsTable.setLinesVisible(true);

    // Initialize the columns and rows.
    bindings.clear();
    final TableColumn columnCommandName = new TableColumn(completionsTable, SWT.LEFT, 0);
    final TableColumn columnKeySequence = new TableColumn(completionsTable, SWT.LEFT, 1);
    final Iterator itemsItr = keybindingToActionInfo.entrySet().iterator();
    while (itemsItr.hasNext()) {
        final Map.Entry entry = (Entry) itemsItr.next();
        final String sequence = (String) entry.getKey();
        final ActionInfo actionInfo = (ActionInfo) entry.getValue();
        final String[] text = { sequence, actionInfo.description };
        final TableItem item = new TableItem(completionsTable, SWT.NULL);
        item.setText(text);
        item.setData("ACTION_INFO", actionInfo);
        bindings.add(actionInfo);
    }

    Dialog.applyDialogFont(parent);
    columnKeySequence.pack();
    columnCommandName.pack();

    /*
     * If you double-click on the table, it should execute the selected
     * command.
     */
    completionsTable.addListener(SWT.DefaultSelection, new Listener() {
        @Override
        public final void handleEvent(final Event event) {
            executeKeyBinding(event);
        }
    });
}
 

/**
 * creates the popup shell.
 * @param selectionIndex
 */
void createPopup(int selectionIndex) {
	// create shell and table
	popup = new Shell(getShell(), SWT.NO_TRIM | SWT.ON_TOP);

	// set style
	int style = getStyle();
	int tableStyle = SWT.SINGLE | SWT.V_SCROLL;
	if ((style & SWT.FLAT) != 0)
		tableStyle |= SWT.FLAT;
	if ((style & SWT.RIGHT_TO_LEFT) != 0)
		tableStyle |= SWT.RIGHT_TO_LEFT;
	if ((style & SWT.LEFT_TO_RIGHT) != 0)
		tableStyle |= SWT.LEFT_TO_RIGHT;

	// create table
	table = new Table(popup, SWT.SINGLE | SWT.FULL_SELECTION);

	if (font != null)
		table.setFont(font);
	if (foreground != null)
		table.setForeground(foreground);
	if (background != null)
		table.setBackground(background);

	// Add popup listeners
	int[] popupEvents = { SWT.Close, SWT.Paint, SWT.Deactivate, SWT.Help };
	for (int i = 0; i < popupEvents.length; i++) {
		popup.addListener(popupEvents[i], listener);
	}

	// add table listeners
	int[] tableEvents = { SWT.MouseMove, SWT.MouseUp, SWT.Selection, SWT.Traverse, SWT.KeyDown, SWT.KeyUp,
			SWT.FocusIn, SWT.Dispose };
	for (int i = 0; i < tableEvents.length; i++) {
		table.addListener(tableEvents[i], listener);
	}

	// set the selection
	if (selectionIndex != -1) {
		table.setSelection(selectionIndex);
	}
}
 

/**
 * creates the popup shell.
 * @param selectionIndex
 */
void createPopup(int selectionIndex) {
	// create shell and table
	popup = new Shell(getShell(), SWT.NO_TRIM | SWT.ON_TOP);

	// set style
	int style = getStyle();
	int tableStyle = SWT.SINGLE | SWT.V_SCROLL;
	if ((style & SWT.FLAT) != 0)
		tableStyle |= SWT.FLAT;
	if ((style & SWT.RIGHT_TO_LEFT) != 0)
		tableStyle |= SWT.RIGHT_TO_LEFT;
	if ((style & SWT.LEFT_TO_RIGHT) != 0)
		tableStyle |= SWT.LEFT_TO_RIGHT;

	// create table
	table = new Table(popup, SWT.SINGLE | SWT.FULL_SELECTION);

	if (font != null)
		table.setFont(font);
	if (foreground != null)
		table.setForeground(foreground);
	if (background != null)
		table.setBackground(background);

	// Add popup listeners
	int[] popupEvents = { SWT.Close, SWT.Paint, SWT.Deactivate, SWT.Help };
	for (int i = 0; i < popupEvents.length; i++) {
		popup.addListener(popupEvents[i], listener);
	}

	// add table listeners
	int[] tableEvents = { SWT.MouseMove, SWT.MouseUp, SWT.Selection, SWT.Traverse, SWT.KeyDown, SWT.KeyUp,
			SWT.FocusIn, SWT.Dispose };
	for (int i = 0; i < tableEvents.length; i++) {
		table.addListener(tableEvents[i], listener);
	}

	// set the selection
	if (selectionIndex != -1) {
		table.setSelection(selectionIndex);
	}
}
 

private final void createTableDialogArea(final Composite parent) {

		String[] inputKeys = getSelectableKeys();
		int columnCount = 0;
		Point dimens = getColumnCount( parent, inputKeys, sizeHint.x); 
		int count = dimens.x;

		GridLayout compositeLayout = new GridLayout(count,true);
		parent.setLayout(compositeLayout);
		parent.setLayoutData(new GridData(GridData.FILL_BOTH));
		
		Table table = new Table(parent, SWT.V_SCROLL | SWT.HORIZONTAL | SWT.WRAP | SWT.FULL_SELECTION); //| SWT.MULTI);
		GridData gridData = new GridData(GridData.FILL_BOTH);
		table.setLayoutData(gridData);
		table.setBackground(parent.getBackground());
		table.setLinesVisible(true);
		table.setHeaderVisible(false);
		
		int columnWidth = (sizeHint.x - getSizeAdjustment()) / count;
		
		TableColumn[] columns = new TableColumn[count];
		for (int i = 0; i < count; i++) {
			columns[i] = new TableColumn(table, SWT.LEFT, columnCount++);
			columns[i].setWidth(columnWidth);
		}
		TableColumnLayout layout = new TableColumnLayout();
		for (int i = 0; i < count; i++) {
			layout.setColumnData(columns[i], new ColumnWeightData(100/count,columnWidth,false));
		}
		parent.setLayout(layout);
		
		int len = inputKeys.length;
		int rowCount = len / columnCount;
		if ((len - rowCount * columnCount) > 0) {
			rowCount++;
		}
		for (int i = 0; i < rowCount; i++) {
			String[] row = new String[columnCount];
			for (int j = 0; j < columnCount; j++) {
				int sourceIndex = i * columnCount + j;
				row[j] = (sourceIndex < len ? (String) inputKeys[sourceIndex] : ""); //$NON-NLS-1$ 
			}
			TableItem item = new TableItem(table, SWT.NULL);
			item.setText(row);
		}

		table.pack();
		sizeHint.y = Math.min(table.getBounds().height + getSizeAdjustment(),sizeHint.y);

		Dialog.applyDialogFont(parent);
		addTableListeners(table);
	}
 

/**
 * Sets the receiver's background color to the color specified by the argument,
 * or to the default system color for the control if the argument is null.
 * <p>
 * Note: This operation is a hint and may be overridden by the platform. For
 * example, on Windows the background of a Button cannot be changed.
 * </p>
 *
 * @param color the new color (or null)
 *
 * @exception IllegalArgumentException
 *                <ul>
 *                <li>ERROR_INVALID_ARGUMENT - if the argument has been
 *                disposed</li>
 *                </ul>
 * @exception SWTException
 *                <ul>
 *                <li>ERROR_WIDGET_DISPOSED - if the receiver has been
 *                disposed</li>
 *                <li>ERROR_THREAD_INVALID_ACCESS - if not called from the
 *                thread that created the receiver</li>
 *                </ul>
 * @see org.eclipse.swt.widgets.Control#setBackground(org.eclipse.swt.graphics.Color)
 */
@Override
public void setBackground(final Color color) {
	super.setBackground(color);
	for (final Table column : columns) {
		column.setBackground(color);
	}
}