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/*******************************************************************************
* Copyright (c) 2008, 2009 Red Hat, Inc.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Elliott Baron <ebaron@redhat.com> - initial API and implementation
*******************************************************************************/
package org.eclipse.linuxtools.internal.valgrind.massif.charting;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.jface.resource.JFaceResources;
import org.eclipse.jface.viewers.StructuredSelection;
import org.eclipse.jface.viewers.TableViewer;
import org.eclipse.jface.window.Window;
import org.eclipse.linuxtools.internal.valgrind.massif.MassifSnapshot;
import org.eclipse.linuxtools.valgrind.ui.ValgrindUIConstants;
import org.eclipse.osgi.util.NLS;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.MouseEvent;
import org.eclipse.swt.events.MouseListener;
import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.graphics.Font;
import org.eclipse.swt.graphics.FontData;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Display;
import org.eclipse.ui.IEditorInput;
import org.eclipse.ui.IEditorSite;
import org.eclipse.ui.IWorkbenchPage;
import org.eclipse.ui.PartInitException;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.part.EditorPart;
import org.swtchart.Chart;
import org.swtchart.IAxis;
import org.swtchart.IAxisSet;
import org.swtchart.ILineSeries;
import org.swtchart.ILineSeries.PlotSymbolType;
import org.swtchart.ISeries.SeriesType;
import org.swtchart.ITitle;
import org.swtchart.LineStyle;
import org.swtchart.Range;
public class ChartEditor extends EditorPart {
protected Chart control;
@Override
public void doSave(IProgressMonitor monitor) {
}
@Override
public void doSaveAs() {
}
@Override
public void init(IEditorSite site, IEditorInput input)
throws PartInitException {
if (input instanceof ChartEditorInput) {
setInput(input);
setSite(site);
setPartName(NLS.bind(Messages.getString("ChartEditor.Heap_Chart"), input.getName())); //$NON-NLS-1$
}
else {
throw new PartInitException(NLS.bind(Messages.getString("ChartEditor.Editor_input_must_be"), ChartEditorInput.class.getName())); //$NON-NLS-1$
}
}
@Override
public boolean isDirty() {
return false;
}
@Override
public boolean isSaveAsAllowed() {
return false;
}
@Override
public void createPartControl(Composite parent) {
final ChartEditorInput input = (ChartEditorInput) getEditorInput();
final HeapChart heapChart = input.getChart();
control = new Chart(parent, SWT.FILL);
heapChart.setChartControl(control);
final Color LIGHTYELLOW = new Color(Display.getDefault(), 255, 255, 225);
final Color WHITE = new Color(Display.getDefault(), 255, 255, 255);
final Color BLACK = new Color(Display.getDefault(), 0, 0, 0);
final Color RED = new Color(Display.getDefault(), 255, 0, 0);
final Color ORANGE = new Color(Display.getDefault(), 255, 165, 0);
final Color GREEN = new Color(Display.getDefault(), 0, 255, 0);
final Color DARK_BLUE = new Color(Display.getDefault(), 64, 128, 128);
final int TICK_GAP = 40;
control.setBackground(WHITE);
control.setBackgroundInPlotArea(LIGHTYELLOW);
FontData fd = JFaceResources.getDialogFont().getFontData()[0];
fd.setStyle(SWT.BOLD);
Font font = new Font(Display.getDefault(), fd);
fd.setHeight(fd.getHeight() + 2);
Font titleFont = new Font(Display.getDefault(), fd);
ITitle title = control.getTitle();
title.setFont(titleFont);
title.setForeground(BLACK);
title.setText(heapChart.title);
IAxis xAxis = control.getAxisSet().getXAxis(0);
xAxis.getGrid().setStyle(LineStyle.NONE);
xAxis.getTick().setForeground(BLACK);
ITitle xTitle = xAxis.getTitle();
xTitle.setFont(font);
xTitle.setForeground(BLACK);
xTitle.setText(heapChart.xUnits);
IAxis yAxis = control.getAxisSet().getYAxis(0);
yAxis.getGrid().setStyle(LineStyle.SOLID);
yAxis.getTick().setForeground(BLACK);
yAxis.getTick().setTickMarkStepHint(TICK_GAP);
ITitle yTitle = yAxis.getTitle();
yTitle.setFont(font);
yTitle.setText(heapChart.yUnits);
yTitle.setForeground(BLACK);
control.getLegend().setPosition(SWT.BOTTOM);
// data
final ILineSeries lsUseful = (ILineSeries) control.getSeriesSet().
createSeries(SeriesType.LINE, Messages.getString("HeapChart.Useful_Heap")); //$NON-NLS-1$);
lsUseful.setXSeries(heapChart.time);
lsUseful.setYSeries(heapChart.dataUseful);
lsUseful.setSymbolType(PlotSymbolType.DIAMOND);
lsUseful.setSymbolColor(RED);
lsUseful.setLineColor(RED);
final ILineSeries lsExtra = (ILineSeries) control.getSeriesSet().
createSeries(SeriesType.LINE, Messages.getString("HeapChart.Extra_Heap")); //$NON-NLS-1$);
lsExtra.setXSeries(heapChart.time);
lsExtra.setYSeries(heapChart.dataExtra);
lsExtra.setSymbolType(PlotSymbolType.DIAMOND);
lsExtra.setSymbolColor(ORANGE);
lsExtra.setLineColor(ORANGE);
if (heapChart.dataStacks != null){
final ILineSeries lsStack = (ILineSeries) control.getSeriesSet().
createSeries(SeriesType.LINE, Messages.getString("HeapChart.Stacks")); //$NON-NLS-1$);
lsStack.setXSeries(heapChart.time);
lsStack.setYSeries(heapChart.dataStacks);
lsStack.setSymbolType(PlotSymbolType.DIAMOND);
lsStack.setSymbolColor(DARK_BLUE);
lsStack.setLineColor(DARK_BLUE);
}
final ILineSeries lsTotal = (ILineSeries) control.getSeriesSet().
createSeries(SeriesType.LINE, Messages.getString("HeapChart.Total_Heap")); //$NON-NLS-1$);
lsTotal.setXSeries(heapChart.time);
lsTotal.setYSeries(heapChart.dataTotal);
lsTotal.setSymbolType(PlotSymbolType.DIAMOND);
lsTotal.setSymbolColor(GREEN);
lsTotal.setLineColor(GREEN);
// adjust axes
control.getAxisSet().adjustRange();
IAxisSet axisSet = control.getAxisSet();
Range xRange = axisSet.getXAxis(0).getRange();
Range yRange = axisSet.getYAxis(0).getRange();
double xExtra = 0.05 * (xRange.upper - xRange.lower);
double yExtra = 0.05 * (yRange.upper - yRange.lower);
axisSet.getXAxis(0).setRange(new Range(xRange.lower, xRange.upper + xExtra));
axisSet.getYAxis(0).setRange(new Range(yRange.lower, yRange.upper + yExtra));
// listeners
control.getPlotArea().addMouseListener(new MouseListener() {
public void mouseUp(MouseEvent e) {
// TODO Auto-generated method stub
}
public void mouseDown(MouseEvent e) {
showView();
TableViewer viewer = input.getView().getTableViewer();
input.getView().setTopControl(viewer.getControl());
Point p = new Point(e.x, e.y);
int closest = 0;
double d1, d2, d3, currMin;
double globalMin = Double.MAX_VALUE;
for (int i = 0; i < heapChart.time.length; i++){
// get distance from click event to data points for the given index
d1 = distance(lsUseful.getPixelCoordinates(i), p);
d2 = distance(lsExtra.getPixelCoordinates(i), p);
d3 = distance(lsTotal.getPixelCoordinates(i), p);
// find the closest data point to the click event
currMin = Math.min(Math.min(d1, d2), d3);
if (currMin < globalMin){
closest = i;
globalMin = currMin;
}
}
MassifSnapshot snapshot = (MassifSnapshot) viewer.getElementAt(closest);
viewer.setSelection(new StructuredSelection(snapshot));
if (e.count == 2 && snapshot.isDetailed()) {
ChartLocationsDialog dialog = new ChartLocationsDialog(Display.getCurrent().getActiveShell());
dialog.setInput(snapshot);
if (dialog.open() == Window.OK) {
dialog.openEditorForResult();
}
}
}
public void mouseDoubleClick(MouseEvent e) {
// TODO Auto-generated method stub
}
});
}
public Chart getControl() {
return control;
}
@Override
public void setFocus() {
if (control != null) {
control.setFocus();
}
}
@Override
public void dispose() {
super.dispose();
control.dispose();
}
/**
* Shows the Valgrind view in the active page and gives it focus.
*/
public void showView() {
Display.getDefault().syncExec(new Runnable() {
public void run() {
try {
IWorkbenchPage activePage = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage();
activePage.showView(ValgrindUIConstants.VIEW_ID);
} catch (PartInitException e) {
e.printStackTrace();
}
}
});
}
/**
* Calculate Euclidean distance between two points (R2).
*/
private double distance (Point p1, Point p2) {
return Math.sqrt(Math.pow(p1.x - p2.x, 2) + Math.pow(p1.y - p2.y, 2));
}
}
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