- * This renderer can operate in two different modes: active
- * and inactive mode. In inactive mode, all objects are rendered by
- * converting them to a string and enclosing that string in a {@link
- * com.arsdigita.bebop.Label}. If the renderer is in active mode, this label is
- * further enclosed in a control link. When the user clicks on this link, the
- * table will fire an TableActionEvent whose getKey()
- * and getColumn() method return the values of the key
- * and column parameters that were passed into
- * {@link #getComponent getComponent}.
- *
- *
- * In a nutshell, an active renderer will let the user click a link that causes
- * a TableActionEvent for the corresponding cell, while an inactive
- * renderer will display the values just as strings, thus making it impossible
- * for the user to cause such an event.
- *
- * @author David Lutterkort
- * @author Michael Pih (pihman@arsdigita.com)
- * @see com.arsdigita.bebop.Table
- * @see com.arsdigita.bebop.event.TableActionEvent
- *
- * @version $Id: DefaultTableCellRenderer.java 287 2005-02-22 00:29:02Z sskracic
- * $
- */
-public class DefaultTableCellRenderer extends LockableImpl
- implements TableCellRenderer {
-
- private boolean m_active;
- private ThreadLocal m_label;
- private ThreadLocal m_controlLink;
-
- /**
- * Creates a new table cell renderer. The table cell renderer is in inactive
- * mode.
- */
- public DefaultTableCellRenderer() {
- this(false);
- }
-
- /**
- * Creates a new table cell renderer. The active argument
- * specifies whether the renderer should be active or not.
- *
- * @param active true if the renderer should generate links
- * instead of just static labels.
- */
- public DefaultTableCellRenderer(boolean active) {
- m_active = active;
- m_label = new ThreadLocal() {
- protected Object initialValue() {
- return new Label("");
- }
- };
- m_controlLink = new ThreadLocal() {
- protected Object initialValue() {
- return new ControlLink((Label) m_label.get());
- }
- };
- }
-
- /**
- * Return true if the renderer is in active mode. A rendererin
- * active mode will enclose the objects it renders in links that, when
- * clicked, will cause the containing table to fire a
- * TableActionEvent.
- *
- * @return true if the renderer is in active mode.
- */
- public final boolean isActive() {
- return m_active;
- }
-
- /**
- * Set the renderer to active or inactive mode.
- *
- * @param v true if the renderer should operate in active mode.
- * @pre ! isLocked()
- */
- public void setActive(boolean v) {
- Assert.isUnlocked(this);
- m_active = v;
- }
-
- /**
- * Return the component that should be used to render the given
- * value. Returns a {@link com.arsdigita.bebop.Label} if the
- * renderer is active, and a {@link com.arsdigita.bebop.ControlLink} if the
- * renderer is inactive.
- *
- * @pre table == null || table != null
- */
- public Component getComponent(Table table, PageState state, Object value,
- boolean isSelected, Object key,
- int row, int column) {
- if (!isLocked() && table != null && table.isLocked()) {
- lock();
- }
-
- Label l = (Label) m_label.get();
- if (value == null) {
- l.setLabel(new GlobalizedMessage("cms.ui.util.",
- CmsConstants.CMS_BUNDLE));
- l.setOutputEscaping(false);
- } else {
- l.setLabel((GlobalizedMessage) value);
- l.setOutputEscaping(true);
- }
- l.setFontWeight((isSelected && m_active) ? Label.BOLD : null);
- if (m_active && !isSelected) {
- return (ControlLink) m_controlLink.get();
- } else {
- return l;
- }
- }
-}