/*
* Copyright (c) 2007, 2011, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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package com.sun.tools.visualvm.charts.xy;
import org.netbeans.lib.profiler.charts.ChartComponent;
import org.netbeans.lib.profiler.charts.ChartOverlay;
import org.netbeans.lib.profiler.charts.swing.Utils;
import org.netbeans.lib.profiler.charts.ChartConfigurationListener;
import org.netbeans.lib.profiler.charts.ChartContext;
import org.netbeans.lib.profiler.charts.ChartItem;
import org.netbeans.lib.profiler.charts.ChartSelectionListener;
import org.netbeans.lib.profiler.charts.ItemPainter;
import org.netbeans.lib.profiler.charts.ItemSelection;
import org.netbeans.lib.profiler.charts.PaintersModel;
import java.awt.Graphics;
import java.awt.Point;
import java.awt.Rectangle;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.MouseEvent;
import java.awt.event.MouseMotionAdapter;
import java.util.List;
import javax.swing.Timer;
import org.netbeans.lib.profiler.charts.xy.XYItemSelection;
/**
*
* @author Jiri Sedlacek
*/
public class XYTooltipOverlay extends ChartOverlay implements ActionListener {
private static final int TOOLTIP_OFFSET = 15;
private static final int TOOLTIP_MARGIN = 10;
private static final int TOOLTIP_RESPONSE = 50;
private static final int ANIMATION_STEPS = 5;
private XYTooltipPainter tooltipPainter;
private Timer timer;
private int currentStep;
private Point mousePosition;
private Point targetPosition;
public XYTooltipOverlay(final ChartComponent chart,
XYTooltipPainter tooltipPainter) {
if (chart.getSelectionModel() == null)
throw new NullPointerException("No ChartSelectionModel set for " + chart); // NOI18N
if (!Utils.forceSpeed()) {
timer = new Timer(TOOLTIP_RESPONSE / ANIMATION_STEPS, this);
timer.setInitialDelay(0);
}
setLayout(null);
this.tooltipPainter = tooltipPainter;
add(tooltipPainter);
tooltipPainter.setVisible(false);
chart.getSelectionModel().addSelectionListener(new ChartSelectionListener() {
public void selectionModeChanged(int newMode, int oldMode) {}
public void selectionBoundsChanged(Rectangle newBounds, Rectangle oldBounds) {}
public void highlightedItemsChanged(List<ItemSelection> currentItems,
List<ItemSelection> addedItems, List<ItemSelection> removedItems) {
updateTooltip(chart);
}
public void selectedItemsChanged(List<ItemSelection> currentItems,
List<ItemSelection> addedItems, List<ItemSelection> removedItems) {}
});
chart.addConfigurationListener(new ChartConfigurationListener.Adapter() {
public void contentsUpdated(long offsetX, long offsetY,
double scaleX, double scaleY,
long lastOffsetX, long lastOffsetY,
double lastScaleX, double lastScaleY,
int shiftX, int shiftY) {
updateTooltip(chart);
}
});
chart.addMouseMotionListener(new MouseMotionAdapter() {
public void mouseMoved(MouseEvent e) {
mousePosition = e.getPoint();
updateTooltip(chart);
}
});
}
public final void setPosition(Point p) {
if (tooltipPainter != null) {
if (p == null) {
if (tooltipPainter.isVisible()) tooltipPainter.setVisible(false);
if (timer != null) timer.stop();
} else {
if (!tooltipPainter.isVisible() || timer == null) {
tooltipPainter.setVisible(true);
tooltipPainter.setLocation(p);
} else {
currentStep = 0;
targetPosition = p;
timer.restart();
}
}
}
}
public final Point getPosition() {
if (tooltipPainter == null) return null;
return tooltipPainter.getLocation();
}
public void actionPerformed(ActionEvent e) {
Point currentPosition = tooltipPainter.getLocation();
currentPosition.x += (targetPosition.x - currentPosition.x) /
(ANIMATION_STEPS - currentStep);
currentPosition.y += (targetPosition.y - currentPosition.y) /
(ANIMATION_STEPS - currentStep);
tooltipPainter.setLocation(currentPosition);
if (++currentStep == ANIMATION_STEPS) timer.stop();
}
private void updateTooltip(ChartComponent chart) {
if (mousePosition == null) return;
List<ItemSelection> highlightedItems =
chart.getSelectionModel().getHighlightedItems();
XYItemSelection selection = highlightedItems.isEmpty() ? null :
(XYItemSelection)highlightedItems.get(0);
if (selection == null ||
selection.getItem().getValuesCount() <= selection.getValueIndex()) {
setPosition(null);
} else {
tooltipPainter.update(highlightedItems);
tooltipPainter.setSize(tooltipPainter.getPreferredSize());
setPosition(highlightedItems, chart.getPaintersModel(), chart.getChartContext());
}
}
private void setPosition(List<ItemSelection> selectedItems, PaintersModel paintersModel, ChartContext chartContext) {
int tooltipX = -1;
int tooltipY = mousePosition.y;
for (ItemSelection selection : selectedItems) {
ChartItem item = selection.getItem();
ItemPainter painter = paintersModel.getPainter(item);
Rectangle bounds = Utils.checkedRectangle(
painter.getSelectionBounds(selection,
chartContext));
if (tooltipX == -1) tooltipX += bounds.x + bounds.width / 2;
}
setPosition(normalizePosition(new Point(tooltipX, tooltipY)));
}
private Point normalizePosition(Point basePoint) {
int w = getWidth();
int h = getHeight();
int cw = tooltipPainter.getWidth();
int ch = tooltipPainter.getHeight();
basePoint.x += TOOLTIP_OFFSET;
if (basePoint.x + cw + TOOLTIP_MARGIN > w)
basePoint.x -= TOOLTIP_OFFSET + cw + TOOLTIP_MARGIN;
if (basePoint.x < TOOLTIP_OFFSET)
basePoint.x = TOOLTIP_OFFSET;
basePoint.y -= ch + TOOLTIP_MARGIN;
if (basePoint.y + ch + TOOLTIP_MARGIN > h)
basePoint.y = h - ch - TOOLTIP_MARGIN;
if (basePoint.y < TOOLTIP_MARGIN)
basePoint.y = TOOLTIP_MARGIN;
return basePoint;
}
public void paint(Graphics g) {
if (tooltipPainter == null) return;
Rectangle bounds = new Rectangle(0, 0, getWidth(), getHeight());
Rectangle clip = g.getClipBounds();
if (clip == null) g.setClip(bounds);
else g.setClip(clip.intersection(bounds));
super.paint(g);
}
}