/*******************************************************************************
* Copyright (c) 2007, 2008 IBM Corporation and others.
* 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:
* IBM Corporation - Initial API and implementation
*******************************************************************************/
package org.eclipse.wst.server.discovery.internal.wizard;
import java.net.URL;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.jface.dialogs.Dialog;
import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.jface.viewers.*;
import org.eclipse.osgi.util.NLS;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.DisposeEvent;
import org.eclipse.swt.events.DisposeListener;
import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.graphics.Font;
import org.eclipse.swt.graphics.FontData;
import org.eclipse.swt.graphics.GC;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Listener;
import org.eclipse.swt.widgets.Table;
import org.eclipse.swt.widgets.TableColumn;
import org.eclipse.swt.widgets.TableItem;
import org.eclipse.wst.server.discovery.internal.ExtensionUtility;
import org.eclipse.wst.server.discovery.internal.ImageResource;
import org.eclipse.wst.server.discovery.internal.Messages;
import org.eclipse.wst.server.discovery.internal.Trace;
import org.eclipse.wst.server.discovery.internal.model.Extension;
/**
*
*/
public class ExtensionComposite extends Composite {
private static final String ROOT = "root";
public interface ExtensionSelectionListener {
public void extensionSelected(Extension extension);
}
protected Table table;
protected TableViewer tableViewer;
protected Font font;
protected HashMap<String, Image> images;
protected String progress;
protected int totalWork;
protected double currentWork;
protected int count;
public ExtensionSelectionListener listener;
public ExtensionComposite(Composite parent, int style, ExtensionSelectionListener listener) {
super(parent, style);
this.listener = listener;
GridLayout layout = new GridLayout();
layout.marginWidth = 0;
layout.marginHeight = 0;
layout.verticalSpacing = 5;
layout.horizontalSpacing = 5;
//layout.numColumns = 2;
setLayout(layout);
Font currentFont = getFont();
FontData[] fd = currentFont.getFontData();
int size2 = fd.length;
for (int i = 0; i < size2; i++) {
fd[i].setHeight(fd[i].getHeight() + 2);
fd[i].setStyle(SWT.BOLD);
}
font = new Font(getDisplay(), fd);
table = new Table(this, SWT.BORDER | SWT.V_SCROLL | SWT.H_SCROLL | SWT.MULTI | SWT.FULL_SELECTION);
GridData data = new GridData(GridData.FILL_HORIZONTAL | GridData.FILL_VERTICAL);
//data.horizontalSpan = 2;
//data.heightHint = 250;
data.widthHint = 350;
table.setLayoutData(data);
//table.setLinesVisible(true);
table.setHeaderVisible(false);
tableViewer = new TableViewer(table);
table.addDisposeListener(new DisposeListener() {
public void widgetDisposed(DisposeEvent e) {
disposeResources();
}
});
TableLayout tableLayout = new TableLayout();
table.setLayout(tableLayout);
/*tableLayout.addColumnData(new ColumnPixelData(90, false));
//tableLayout.addColumnData(new ColumnWeightData(8, 80, true));
TableColumn col2 = new TableColumn(table, SWT.NONE);
col2.setText("null");
*/
tableLayout.addColumnData(new ColumnWeightData(10, 250, false));
final TableColumn col = new TableColumn(table, SWT.NONE);
col.setText("null");
/*col.setWidth(300);
col.addListener(SWT.Selection, new Listener() {
public void handleEvent(Event event) {
col.pack();
}
});*/
//tableLayout.addColumnData(new ColumnWeightData(30, 250, false));
//TableColumn col2 = new TableColumn(table, SWT.NONE);
//col2.setText("null2");
final int TEXT_MARGIN = 3;
table.addListener(SWT.MeasureItem, new Listener() {
public void handleEvent(Event event) {
//System.out.println(event.width);
/*TableItem item = (TableItem) event.item;
Object obj = item.getData();
//System.out.println("measure " + obj);
if (obj instanceof CoreException) {
event.gc.setFont(font);
Point size = event.gc.textExtent("A");
event.gc.setFont(null);
//event.height = Math.max(event.height, TEXT_MARGIN * 2 + size.y);
event.height = TEXT_MARGIN * 2 + size.y;
System.out.println(event.height);
return;
}*/
event.gc.setFont(font);
Point size = event.gc.textExtent("A");
int h = TEXT_MARGIN * 3 + size.y;
size = event.gc.textExtent("A");
event.gc.setFont(null);
h += size.y;
h = Math.max(h, 40 + TEXT_MARGIN * 2);
//event.width = 400;
event.height = Math.max(event.height, h);
//System.out.println(event.height);
//event.width = 300;
}
});
table.addListener(SWT.EraseItem, new Listener() {
public void handleEvent(Event event) {
//if (event.index == 0)
// return;
event.detail &= ~SWT.FOREGROUND;
//event.detail &= ~SWT.BACKGROUND;
}
});
table.addListener(SWT.PaintItem, new Listener() {
public void handleEvent(Event event) {
//if (event.index == 0)
// return;
TableItem item = (TableItem) event.item;
Object obj = item.getData();
int width = table.getColumn(0).getWidth();
GC gc = event.gc;
if (obj instanceof String) {
String s = (String) obj;
if (progress != null)
s = progress;
int h = event.y + event.height / 2;
Point size = event.gc.textExtent(s);
gc.drawText(s, event.x + TEXT_MARGIN, h - size.y/2, true);
int hh = event.y + event.height - 5 - TEXT_MARGIN - 1;
gc.setLineWidth(2);
Color color = getDisplay().getSystemColor(SWT.COLOR_LIST_SELECTION);
gc.setBackground(color);
int width2 = 0;
int step = 9;
if (totalWork > 0)
width2 = (int) ((width - step * 2 - 15 - TEXT_MARGIN * 2) * currentWork / totalWork);
for (int i = 0; i < width2; i+= step) {
gc.fillRectangle(event.x + TEXT_MARGIN + i, hh, step - 2, 5);
}
return;
} else if (obj instanceof List) {
List<String> list = (List<String>) obj;
int size = list.size();
String[] hosts = new String[size];
list.toArray(hosts);
StringBuffer sb = new StringBuffer();
for (int i = 0; i < size; i++) {
if (i > 0)
sb.append(", ");
sb.append(hosts[i]);
}
String s = NLS.bind(Messages.discoverSiteError, sb.toString());
gc.drawText(s, event.x + TEXT_MARGIN, event.y + TEXT_MARGIN, true);
return;
}
Extension ei = (Extension) obj;
if (ei == null)
return;
//if ((event.detail & SWT.SELECTED) == 0) {
// //event.gc.setForeground();
// //event.gc.fillRectangle(0, 0, width, 5);
// event.gc.setBackground(getBackground());
// event.gc.setForeground(getForeground());
// event.gc.fillRectangle(event.x, event.y, width, event.height);
//}
//System.out.println(width + " " + event.width + " " + event.x);
String name = ei.getName();
String provider = "" + ei.getProvider();
//String provider = "" + ei.getImage();
//String provider = "" + ExtensionUtility.getDescription(ei);
String version = ei.getVersion().toString();
/*int ind = ver.indexOf("_");
if (ind >= 0)
ver = ver.substring(ind+1);
String version = "v" + ver;*/
//Image image = getImage(ei.getImage());
Image image = ei.getImage();
if (image == null)
image = ImageResource.getImage(ImageResource.IMG_WIZARD); // TODO
int iw = image.getBounds().width;
int ih = image.getBounds().height;
gc.drawImage(image, 0, 0, iw, ih, event.x + TEXT_MARGIN, event.y + TEXT_MARGIN, 40, 40);
iw = 40 + TEXT_MARGIN * 2;
int yOffset = TEXT_MARGIN;
gc.setFont(font);
Point size = new Point(0, 0);
if (name != null) {
gc.drawText(name, event.x + iw, event.y + yOffset, true);
size = event.gc.textExtent(name);
}
gc.setFont(null);
yOffset += size.y + TEXT_MARGIN;
gc.drawText(provider, event.x + iw, event.y + yOffset, true);
size = event.gc.textExtent(version);
gc.drawText(version, event.x + width - TEXT_MARGIN * 3 - size.x, event.y + yOffset, true);
}
});
tableViewer.setSorter(new ViewerSorter() {
public int compare(Viewer viewer, Object e1, Object e2) {
if ((e1 instanceof Extension) && !(e2 instanceof Extension))
return -1;
if (!(e1 instanceof Extension) && (e2 instanceof Extension))
return 1;
try {
Extension f1 = (Extension) e1;
Extension f2 = (Extension) e2;
return (f1.getName().compareToIgnoreCase(f2.getName()));
} catch (Exception e) {
return 0;
}
}
});
/*Composite buttonComp = new Composite(this, SWT.NONE);
buttonComp.setLayoutData(new GridData(GridData.HORIZONTAL_ALIGN_FILL | GridData.VERTICAL_ALIGN_BEGINNING));
layout = new GridLayout();
layout.marginWidth = 0;
layout.marginHeight = 0;
buttonComp.setLayout(layout);
Button install = SWTUtil.createButton(buttonComp, "Find Updates");
install.addSelectionListener(new SelectionAdapter() {
public void widgetSelected(SelectionEvent e) {
//
}
});*/
final Label description = new Label(this, SWT.WRAP);
description.setText("Multi\nLine\nMessage");
Dialog.applyDialogFont(this);
Point p = description.computeSize(SWT.DEFAULT, SWT.DEFAULT);
description.setText("");
data = new GridData(GridData.FILL_HORIZONTAL | GridData.VERTICAL_ALIGN_CENTER);
data.horizontalSpan = 2;
if (p.y > 10)
data.heightHint = p.y;
else
data.heightHint = 42;
description.setLayoutData(data);
/*final Label download = new Label(this, SWT.NONE);
data = new GridData(GridData.FILL_HORIZONTAL | GridData.VERTICAL_ALIGN_CENTER);
data.horizontalSpan = 2;
download.setLayoutData(data);
download.setText("Download size: ");*/
tableViewer.addSelectionChangedListener(new ISelectionChangedListener() {
public void selectionChanged(SelectionChangedEvent event) {
StructuredSelection sel = (StructuredSelection) tableViewer.getSelection();
Object obj = sel.getFirstElement();
Extension extension = null;
if (obj instanceof Extension)
extension = (Extension) obj;
handleSelection(extension);
if (extension != null)
description.setText(extension.getDescription());
else
description.setText("");
/*long size = feature.getDownloadSize();
String s = "<unknown>";
if (size > 0)
s = size + " Kb";
download.setText("Download size: " + s);*/
}
});
deferInitialization();
}
protected Image getImage(URL url) {
if (url == null)
return null;
try {
Image image = images.get(url.toString());
if (image != null)
return image;
} catch (Exception e) {
// ignore
}
try {
ImageDescriptor id = ImageDescriptor.createFromURL(url);
Image image = id.createImage();
if (images == null)
images = new HashMap<String, Image>();
images.put(url.toString(), image);
return image;
} catch (Exception e) {
Trace.trace(Trace.INFO, "Could not create image", e);
}
return null;
}
protected void disposeResources() {
try {
font.dispose();
if (images != null) {
Iterator iterator = images.values().iterator();
while (iterator.hasNext()) {
Image image = (Image) iterator.next();
image.dispose();
}
}
} catch (Exception e) {
Trace.trace(Trace.WARNING, "Could not dispose - possible resource leak", e);
}
}
protected void handleSelection(Extension extension) {
listener.extensionSelected(extension);
}
protected void deferInitialization() {
final List<Object> list = Collections.synchronizedList(new ArrayList<Object>());
list.add(Messages.viewInitializing);
tableViewer.setContentProvider(new ExtensionContentProvider(list));
tableViewer.setLabelProvider(new ExtensionTableLabelProvider());
tableViewer.setInput(ROOT);
final Thread t = new Thread("Deferred Initialization") {
public void run() {
deferredInitialize(list, new IProgressMonitor() {
public void beginTask(String name, int totalWork2) {
totalWork = totalWork2;
progress = name;
}
public void setTaskName(String name) {
progress = name;
}
public void subTask(String name) {
progress = name;
}
public void done() {
//
}
public void internalWorked(double work) {
currentWork += work;
}
public boolean isCanceled() {
return false;
}
public void setCanceled(boolean value) {
//
}
public void worked(int work) {
currentWork += work;
}
});
}
};
t.setDaemon(true);
t.start();
final Display display = getDisplay();
final int SLEEP = 100;
final Runnable[] animator = new Runnable[1];
animator[0] = new Runnable() {
public void run() {
if (t.isAlive()) {
count++;
if (!table.isDisposed())
tableViewer.refresh(ROOT);
display.timerExec(SLEEP, animator[0]);
}
}
};
display.timerExec(SLEEP, animator[0]);
}
public void deferredInitialize(final List<Object> list, IProgressMonitor monitor) {
final List<String> failedSites = new ArrayList<String>();
ExtensionUtility.ExtensionListener listener2 = new ExtensionUtility.ExtensionListener() {
public void extensionFound(Extension extension) {
list.add(extension);
if (progress != null)
list.set(0, progress);
}
public void extensionRemoved(Extension feature) {
list.remove(feature);
}
public void siteFailure(String host) {
synchronized (failedSites) {
if (!list.contains(failedSites))
list.add(failedSites);
failedSites.add(host);
}
}
};
String id = "org.eclipse.wst.server.core.serverAdapter"; // TODO
try {
ExtensionUtility.getAllExtensions(id, listener2, monitor);
} catch (CoreException ce) {
Trace.trace(Trace.WARNING, "Error downloading server adapter info", ce);
}
list.remove(0);
Display.getDefault().asyncExec(new Runnable() {
public void run() {
if (!table.isDisposed())
tableViewer.refresh(ROOT);
}
});
}
protected Object getSelection(ISelection sel2) {
IStructuredSelection sel = (IStructuredSelection) sel2;
return sel.getFirstElement();
}
}