/*
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* CDDL HEADER START
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*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License, Version 1.0 only
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* (the "License"). You may not use this file except in compliance
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* with the License.
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*
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* You can obtain a copy of the license at legal-notices/CDDLv1_0.txt
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* or http://forgerock.org/license/CDDLv1.0.html.
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* See the License for the specific language governing permissions
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* and limitations under the License.
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*
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* When distributing Covered Code, include this CDDL HEADER in each
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* file and include the License file at legal-notices/CDDLv1_0.txt.
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* If applicable, add the following below this CDDL HEADER, with the
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* fields enclosed by brackets "[]" replaced with your own identifying
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* information:
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* Portions Copyright [yyyy] [name of copyright owner]
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*
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* CDDL HEADER END
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*
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*
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* Copyright 2009 Sun Microsystems, Inc.
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*/
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package org.opends.guitools.controlpanel.event;
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import java.awt.Component;
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import java.awt.Dimension;
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import java.awt.Point;
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import java.awt.Rectangle;
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import java.awt.event.MouseAdapter;
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import java.awt.event.MouseEvent;
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import javax.swing.JComponent;
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import javax.swing.JTable;
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import javax.swing.JToolTip;
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import javax.swing.Popup;
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import javax.swing.PopupFactory;
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import javax.swing.table.TableCellRenderer;
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/**
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* This class listens to events and displays a tooltip when the user clicks on
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* the object that registered this listener.
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*
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*/
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public class ClickTooltipDisplayer extends MouseAdapter
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{
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private boolean isTooltipVisible = false;
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private Popup tipWindow;
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/**
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* {@inheritDoc}
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*/
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public void mouseExited(MouseEvent event)
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{
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hideToolTip(event);
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}
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/**
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* {@inheritDoc}
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*/
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public void mousePressed(MouseEvent event)
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{
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if (isTooltipVisible)
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{
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hideToolTip(event);
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}
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else
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{
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displayToolTip(event);
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}
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}
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/**
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* Displays a tooltip depending on the MouseEvent received.
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* @param event the mouse event.
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*/
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private void displayToolTip(MouseEvent event)
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{
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JComponent component = (JComponent)event.getSource();
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String toolTipText;
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if (component instanceof JTable)
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{
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JTable table = (JTable)component;
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int row = table.rowAtPoint(event.getPoint());
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int column = table.columnAtPoint(event.getPoint());
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if (row != -1 && column != -1)
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{
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TableCellRenderer renderer = table.getCellRenderer(row, column);
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Component comp = renderer.getTableCellRendererComponent(table,
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table.getValueAt(row, column), true, true, row, column);
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if (comp instanceof JComponent)
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{
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// The coordinates must be translated.
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Rectangle rect = table.getCellRect(row, column, true);
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int x = event.getPoint().x - rect.x;
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int y = event.getPoint().y - rect.y;
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MouseEvent tEv = new MouseEvent(table, event.getID(),
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event.getWhen(), event.getModifiers(), x, y,
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event.getClickCount(), event.isPopupTrigger(), event.getButton());
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toolTipText = ((JComponent)comp).getToolTipText(tEv);
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}
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else
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{
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toolTipText = null;
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}
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}
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else
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{
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toolTipText = null;
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}
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}
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else
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{
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toolTipText = component.getToolTipText();
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}
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if (toolTipText != null)
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{
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Point preferredLocation = component.getToolTipLocation(event);
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Rectangle sBounds = component.getGraphicsConfiguration().
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getBounds();
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JToolTip tip = component.createToolTip();
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tip.setTipText(toolTipText);
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Dimension size = tip.getPreferredSize();
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Point location = new Point();
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Point screenLocation = component.getLocationOnScreen();
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if(preferredLocation != null)
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{
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location.x = screenLocation.x + preferredLocation.x;
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location.y = screenLocation.y + preferredLocation.y;
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}
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else
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{
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location.x = screenLocation.x + event.getX();
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location.y = screenLocation.y + event.getY() + 20;
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}
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if (location.x < sBounds.x) {
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location.x = sBounds.x;
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}
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else if (location.x - sBounds.x + size.width > sBounds.width) {
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location.x = sBounds.x + Math.max(0, sBounds.width - size.width);
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}
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if (location.y < sBounds.y) {
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location.y = sBounds.y;
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}
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else if (location.y - sBounds.y + size.height > sBounds.height) {
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location.y = sBounds.y + Math.max(0, sBounds.height - size.height);
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}
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PopupFactory popupFactory = PopupFactory.getSharedInstance();
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tipWindow = popupFactory.getPopup(component, tip, location.x, location.y);
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tipWindow.show();
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isTooltipVisible = true;
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}
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}
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/**
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* Hides the tooltip if we are displaying it.
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* @param event the mouse event.
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*/
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private void hideToolTip(MouseEvent event)
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{
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if (tipWindow != null)
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{
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tipWindow.hide();
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tipWindow = null;
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isTooltipVisible = false;
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}
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}
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}
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