/*
* File : PeerInfoView.java
* Created : Oct 2, 2005
* By : TuxPaper
*
* Copyright (C) 2005, 2006 Aelitis SAS, All rights Reserved
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License.
*
* This program 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 for more details ( see the LICENSE file ).
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* AELITIS, SAS au capital de 46,603.30 euros,
* 8 Allee Lenotre, La Grille Royale, 78600 Le Mesnil le Roi, France.
*/
package org.gudy.azureus2.ui.swt.views.file;
import org.eclipse.swt.SWT;
import org.eclipse.swt.custom.ScrolledComposite;
import org.eclipse.swt.events.MouseEvent;
import org.eclipse.swt.events.MouseTrackAdapter;
import org.eclipse.swt.events.PaintEvent;
import org.eclipse.swt.events.PaintListener;
import org.eclipse.swt.graphics.*;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.*;
import org.gudy.azureus2.core3.config.COConfigurationManager;
import org.gudy.azureus2.core3.disk.DiskManager;
import org.gudy.azureus2.core3.disk.DiskManagerFileInfo;
import org.gudy.azureus2.core3.disk.DiskManagerPiece;
import org.gudy.azureus2.core3.download.DownloadManager;
import org.gudy.azureus2.core3.logging.*;
import org.gudy.azureus2.core3.peer.PEPeerManager;
import org.gudy.azureus2.core3.peer.PEPiece;
import org.gudy.azureus2.core3.util.AERunnable;
import org.gudy.azureus2.core3.util.Debug;
import org.gudy.azureus2.ui.swt.Utils;
import org.gudy.azureus2.ui.swt.components.Legend;
import org.gudy.azureus2.ui.swt.mainwindow.Colors;
import org.gudy.azureus2.ui.swt.views.AbstractIView;
import org.gudy.azureus2.ui.swt.views.IViewExtension;
public class FileInfoView
extends AbstractIView
implements IViewExtension
{
private final static int BLOCK_FILLSIZE = 14;
private final static int BLOCK_SPACING = 2;
private final static int BLOCK_SIZE = BLOCK_FILLSIZE + BLOCK_SPACING;
private final static int BLOCKCOLOR_DONE = 0;
private final static int BLOCKCOLOR_SKIPPED = 1;
private final static int BLOCKCOLOR_ACTIVE = 2;
private final static int BLOCKCOLOR_NEEDED = 3;
private Composite fileInfoComposite;
private ScrolledComposite sc;
protected Canvas fileInfoCanvas;
private Color[] blockColors;
private Label topLabel;
// More delay for this view because of high workload
private int graphicsUpdate = COConfigurationManager
.getIntParameter("Graphics Update") * 2;
private int loopFactor = 0;
private DiskManagerFileInfo file;
private Font font = null;
Image img = null;
// accessed only in SWT Thread
private boolean refreshInfoCanvasQueued;
/**
* Initialize
*
*/
public FileInfoView()
{
blockColors = new Color[] {
Colors.blues[Colors.BLUES_DARKEST],
Colors.white,
Colors.red,
Colors.green,
};
}
public void dataSourceChanged(Object newDataSource) {
if (newDataSource == null)
file = null;
else if (newDataSource instanceof Object[])
file = (DiskManagerFileInfo) ((Object[]) newDataSource)[0];
else
file = (DiskManagerFileInfo) newDataSource;
Utils.execSWTThread(new AERunnable() {
public void runSupport() {
fillFileInfoSection();
}
});
}
/* (non-Javadoc)
* @see org.gudy.azureus2.ui.swt.views.AbstractIView#getData()
*/
public String getData() {
return "FileView.BlockView.title";
}
/* (non-Javadoc)
* @see org.gudy.azureus2.ui.swt.views.AbstractIView#initialize(org.eclipse.swt.widgets.Composite)
*/
public void initialize(Composite composite) {
if (fileInfoComposite != null && !fileInfoComposite.isDisposed()) {
Logger.log(new LogEvent(LogIDs.GUI, LogEvent.LT_ERROR,
"FileInfoView already initialized! Stack: "
+ Debug.getStackTrace(true, false)));
delete();
}
createFileInfoPanel(composite);
}
private Composite createFileInfoPanel(Composite parent) {
GridLayout layout;
GridData gridData;
// Peer Info section contains
// - Peer's Block display
// - Peer's Datarate
fileInfoComposite = new Composite(parent, SWT.NONE);
layout = new GridLayout();
layout.numColumns = 2;
layout.horizontalSpacing = 0;
layout.verticalSpacing = 0;
layout.marginHeight = 0;
layout.marginWidth = 0;
fileInfoComposite.setLayout(layout);
gridData = new GridData(GridData.FILL, GridData.FILL, true, true);
fileInfoComposite.setLayoutData(gridData);
new Label(fileInfoComposite, SWT.NULL).setLayoutData(new GridData());
topLabel = new Label(fileInfoComposite, SWT.NULL);
gridData = new GridData(SWT.FILL, SWT.DEFAULT, false, false);
topLabel.setLayoutData(gridData);
sc = new ScrolledComposite(fileInfoComposite, SWT.V_SCROLL);
sc.setExpandHorizontal(true);
sc.setExpandVertical(true);
layout = new GridLayout();
layout.horizontalSpacing = 0;
layout.verticalSpacing = 0;
layout.marginHeight = 0;
layout.marginWidth = 0;
sc.setLayout(layout);
gridData = new GridData(GridData.FILL, GridData.FILL, true, true, 2, 1);
sc.setLayoutData(gridData);
fileInfoCanvas = new Canvas(sc, SWT.NO_REDRAW_RESIZE | SWT.NO_BACKGROUND);
gridData = new GridData(GridData.FILL, SWT.DEFAULT, true, false);
fileInfoCanvas.setLayoutData(gridData);
fileInfoCanvas.addPaintListener(new PaintListener() {
public void paintControl(PaintEvent e) {
if (e.width <= 0 || e.height <= 0)
return;
try {
Rectangle bounds = (img == null) ? null : img.getBounds();
if (bounds == null) {
e.gc.fillRectangle(e.x, e.y, e.width, e.height);
} else {
if (e.x + e.width > bounds.width)
e.gc.fillRectangle(bounds.width, e.y, e.x + e.width
- bounds.width + 1, e.height);
if (e.y + e.height > bounds.height)
e.gc.fillRectangle(e.x, bounds.height, e.width, e.y + e.height
- bounds.height + 1);
int width = Math.min(e.width, bounds.width - e.x);
int height = Math.min(e.height, bounds.height - e.y);
e.gc.drawImage(img, e.x, e.y, width, height, e.x, e.y, width,
height);
}
} catch (Exception ex) {
}
}
});
fileInfoCanvas.addMouseTrackListener(
new MouseTrackAdapter()
{
public void
mouseHover(
MouseEvent event )
{
showPieceDetails( event.x, event.y );
}
});
Listener doNothingListener = new Listener() {
public void handleEvent(Event event) {
}
};
fileInfoCanvas.addListener(SWT.KeyDown, doNothingListener);
fileInfoCanvas.addListener(SWT.Resize, new Listener() {
public void handleEvent(Event e) {
if (refreshInfoCanvasQueued) {
return;
}
refreshInfoCanvasQueued = true;
// wrap in asyncexec because sc.setMinWidth (called later) doesn't work
// too well inside a resize (the canvas won't size isn't always updated)
Utils.execSWTThreadLater(0, new AERunnable() {
public void runSupport() {
if (img != null) {
int iOldColCount = img.getBounds().width / BLOCK_SIZE;
int iNewColCount = fileInfoCanvas.getClientArea().width / BLOCK_SIZE;
if (iOldColCount != iNewColCount)
refreshInfoCanvas();
}
}
});
}
});
sc.setContent(fileInfoCanvas);
Legend.createLegendComposite(fileInfoComposite,
blockColors,
new String[] {
"FileView.BlockView.Done",
"FileView.BlockView.Skipped",
"FileView.BlockView.Active",
"FileView.BlockView.Outstanding",
},
new GridData(SWT.FILL,SWT.DEFAULT, true, false, 2, 1));
int iFontPixelsHeight = 10;
int iFontPointHeight = (iFontPixelsHeight * 72)
/ fileInfoCanvas.getDisplay().getDPI().y;
Font f = fileInfoCanvas.getFont();
FontData[] fontData = f.getFontData();
fontData[0].setHeight(iFontPointHeight);
font = new Font(fileInfoCanvas.getDisplay(), fontData);
return fileInfoComposite;
}
public void fillFileInfoSection() {
topLabel.setText( "" );
refreshInfoCanvas();
}
public void refresh() {
super.refresh();
if (loopFactor++ % graphicsUpdate == 0) {
refreshInfoCanvas();
}
}
protected void
showPieceDetails(
int x,
int y )
{
Rectangle bounds = fileInfoCanvas.getClientArea();
if (bounds.width <= 0 || bounds.height <= 0){
return;
}
if ( file == null ){
return;
}
DownloadManager download_manager = file.getDownloadManager();
if ( download_manager == null ){
return;
}
DiskManager disk_manager = download_manager.getDiskManager();
PEPeerManager peer_manager = download_manager.getPeerManager();
if (disk_manager == null || peer_manager == null ){
return;
}
DiskManagerPiece[] dm_pieces = disk_manager.getPieces();
PEPiece[] pe_pieces = peer_manager.getPieces();
int first_piece = file.getFirstPieceNumber();
int num_pieces = file.getNbPieces();
int iNumCols = bounds.width / BLOCK_SIZE;
int x_block = x/BLOCK_SIZE;
int y_block = y/BLOCK_SIZE;
int piece_number = y_block*iNumCols + x_block + first_piece;
if ( piece_number >= first_piece && piece_number < first_piece + num_pieces ){
DiskManagerPiece dm_piece = dm_pieces[piece_number];
PEPiece pe_piece = pe_pieces[piece_number];
String text = "Piece " + piece_number + ": " + dm_piece.getString();
if ( pe_piece != null ){
text += ", active: " + pe_piece.getString();
}else{
if ( dm_piece.isNeeded() && !dm_piece.isDone()){
text += ", inactive: " + peer_manager.getPiecePicker().getPieceString( piece_number );
}
}
topLabel.setText( text );
}else{
topLabel.setText( "" );
}
}
protected void refreshInfoCanvas() {
refreshInfoCanvasQueued = false;
Rectangle bounds = fileInfoCanvas.getClientArea();
if (bounds.width <= 0 || bounds.height <= 0)
return;
if (img != null && !img.isDisposed()) {
img.dispose();
img = null;
}
DownloadManager download_manager = file==null?null:file.getDownloadManager();
DiskManager disk_manager = download_manager==null?null:download_manager.getDiskManager();
PEPeerManager peer_manager = download_manager==null?null:download_manager.getPeerManager();
if ( file == null || disk_manager == null || peer_manager == null ) {
GC gc = new GC(fileInfoCanvas);
gc.fillRectangle(bounds);
gc.dispose();
return;
}
int first_piece = file.getFirstPieceNumber();
int num_pieces = file.getNbPieces();
int iNumCols = bounds.width / BLOCK_SIZE;
int iNeededHeight = (((num_pieces - 1) / iNumCols) + 1)
* BLOCK_SIZE;
if (sc.getMinHeight() != iNeededHeight) {
sc.setMinHeight(iNeededHeight);
sc.layout(true, true);
bounds = fileInfoCanvas.getClientArea();
}
img = new Image(fileInfoCanvas.getDisplay(), bounds.width, iNeededHeight);
GC gcImg = new GC(img);
try {
gcImg.setBackground(fileInfoCanvas.getBackground());
gcImg.fillRectangle(0, 0, bounds.width, bounds.height);
DiskManagerPiece[] dm_pieces = disk_manager.getPieces();
PEPiece[] pe_pieces = peer_manager.getPieces();
int iRow = 0;
int iCol = 0;
for (int i = first_piece; i < first_piece+num_pieces; i++) {
DiskManagerPiece dm_piece = dm_pieces[i];
PEPiece pe_piece = pe_pieces[i];
int colorIndex;
int iXPos = iCol * BLOCK_SIZE;
int iYPos = iRow * BLOCK_SIZE;
if ( dm_piece.isDone()){
colorIndex = BLOCKCOLOR_DONE;
}else if ( !dm_piece.isNeeded()){
colorIndex = BLOCKCOLOR_SKIPPED;
}else if ( pe_piece != null ){
colorIndex = BLOCKCOLOR_ACTIVE;
}else{
colorIndex = BLOCKCOLOR_NEEDED;
}
gcImg.setBackground(blockColors[colorIndex]);
gcImg.fillRectangle(iXPos, iYPos, BLOCK_FILLSIZE, BLOCK_FILLSIZE);
iCol++;
if (iCol >= iNumCols) {
iCol = 0;
iRow++;
}
}
} catch (Exception e) {
Logger.log(new LogEvent(LogIDs.GUI, "drawing piece map", e));
} finally {
gcImg.dispose();
}
fileInfoCanvas.redraw();
}
/* (non-Javadoc)
* @see org.gudy.azureus2.ui.swt.views.AbstractIView#getComposite()
*/
public Composite getComposite() {
return fileInfoComposite;
}
/* (non-Javadoc)
* @see org.gudy.azureus2.ui.swt.views.AbstractIView#delete()
*/
public void delete() {
if (img != null && !img.isDisposed()) {
img.dispose();
img = null;
}
if (font != null && !font.isDisposed()) {
font.dispose();
font = null;
}
super.delete();
}
public Menu getPrivateMenu() {
return null;
}
public void viewActivated() {
refreshInfoCanvas();
}
public void viewDeactivated() {
}
}