Examples of org.eclipse.swt.graphics.Image

org.eclipse.swt.graphics.Image
his point, rgbs contains specifications of all // the colors contained within this image. You may // allocate as many of these colors as you wish by // using the Color constructor Color(RGB), then // create the image: Image i = new Image(device, data);
Applications which require even greater control over the image loading process should use the support provided in class ImageLoader.
Application code must explicitly invoke the Image.dispose() method to release the operating system resources managed by each instance when those instances are no longer required.
@see Color @see ImageData @see ImageLoader @see Image snippets @see SWT Examples: GraphicsExample, ImageAnalyzer @see Sample code and further information

      Messages.setLanguageText(lblNotAvail, "core.not.available");
      return cSection;
    }


    ImageLoader imageLoader = ImageLoader.getInstance();
    Image imgOpenFolder = imageLoader.getImage("openFolderButton");      


    String sCurConfigID;


    GridData gridData;


    int userMode = COConfigurationManager.getIntParameter("User Mode");


    final IpFilterManager ipFilterManager = AzureusCoreFactory.getSingleton().getIpFilterManager();
    filter = ipFilterManager.getIPFilter();


    Composite gFilter = new Composite(parent, SWT.NULL);
    GridLayout layout = new GridLayout();
    layout.marginHeight = 0;
    layout.marginWidth = 0;
    gFilter.setLayout(layout);
    gridData = new GridData(GridData.VERTICAL_ALIGN_FILL | GridData.HORIZONTAL_ALIGN_FILL);
    gFilter.setLayoutData(gridData);
    
    
    // start controls


      // row: enable filter + allow/deny
    
  gridData = new GridData();


    BooleanParameter enabled = new BooleanParameter(gFilter, "Ip Filter Enabled");
  enabled.setLayoutData( gridData ); 
    Messages.setLanguageText(enabled.getControl(), "ConfigView.section.ipfilter.enable");


  gridData = new GridData();


    BooleanParameter deny = new BooleanParameter(gFilter, "Ip Filter Allow");
  deny.setLayoutData( gridData ); 
    Messages.setLanguageText(deny.getControl(), "ConfigView.section.ipfilter.allow");
  
    deny.addChangeListener(
      new ParameterChangeAdapter()
    {
        public void
        parameterChanged(
          Parameter  p,
          boolean    caused_internally )
      {
          setPercentageBlocked();
      }
    });
    
      // row persist banning
    
  gridData = new GridData();


  BooleanParameter persist_bad_data_banning = new BooleanParameter(gFilter, "Ip Filter Banning Persistent");
  persist_bad_data_banning.setLayoutData( gridData );
  Messages.setLanguageText(persist_bad_data_banning.getControl(), "ConfigView.section.ipfilter.persistblocking");


    Group gBlockBanning = new Group(gFilter, SWT.NULL);
    Messages.setLanguageText(gBlockBanning, "ConfigView.section.ipfilter.peerblocking.group");
    layout = new GridLayout();
    layout.numColumns = 2;
    gBlockBanning.setLayout(layout);




    // row block bad + group ban


    BooleanParameter enable_bad_data_banning = new BooleanParameter(
        gBlockBanning, "Ip Filter Enable Banning",
        "ConfigView.section.ipfilter.enablebanning");
    gridData = new GridData();
    gridData.horizontalSpan = 2;
    enable_bad_data_banning.setLayoutData(gridData);


    Label discard_label = new Label(gBlockBanning, SWT.NULL);
    Messages.setLanguageText(discard_label,
        "ConfigView.section.ipfilter.discardbanning");


    FloatParameter discard_ratio = new FloatParameter(gBlockBanning, "Ip Filter Ban Discard Ratio");
    gridData = new GridData();
    discard_ratio.setLayoutData(gridData);




    Composite cIndent = new Composite(gBlockBanning, SWT.NONE);
    gridData = new GridData(GridData.FILL_BOTH);
    gridData.horizontalSpan = 2;
    gridData.horizontalIndent = 15;
    cIndent.setLayoutData(gridData);
    layout = new GridLayout(3, false);
    layout.marginHeight = 0;
    layout.marginWidth = 0;
    cIndent.setLayout(layout);
    
    Image img = imageLoader.getImage("subitem");
    Label label = new Label(cIndent, SWT.NULL);
    gridData = new GridData(GridData.VERTICAL_ALIGN_BEGINNING);
    label.setLayoutData(gridData);
    label.setImage(img);

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    imageLoader.releaseImage("openFolderButton");
  }


  public Composite configSectionCreate(final Composite parent) {
    ImageLoader imageLoader = ImageLoader.getInstance();
    Image imgOpenFolder = imageLoader.getImage("openFolderButton");


    GridData gridData;
    Label label;
    String sCurConfigID;
    final ArrayList allConfigIDs = new ArrayList();


    Composite gFile = new Composite(parent, SWT.NULL);


    GridLayout layout = new GridLayout();
    layout.numColumns = 2;
    layout.marginHeight = 0;
    gFile.setLayout(layout);


    int userMode = COConfigurationManager.getIntParameter("User Mode");


    // Default Dir Sction
    Group gDefaultDir = new Group(gFile, SWT.NONE);
    Messages.setLanguageText(gDefaultDir,
        "ConfigView.section.file.defaultdir.section");
    layout = new GridLayout();
    layout.numColumns = 3;
    layout.marginHeight = 2;
    gDefaultDir.setLayout(layout);
    gridData = new GridData(GridData.FILL_HORIZONTAL);
    gridData.horizontalSpan = 2;
    gDefaultDir.setLayoutData(gridData);


    // Save Path
    sCurConfigID = "Default save path";
    allConfigIDs.add(sCurConfigID);
    Label lblDefaultDir = new Label(gDefaultDir, SWT.NONE);
    Messages.setLanguageText(lblDefaultDir,
        "ConfigView.section.file.defaultdir.ask");
    lblDefaultDir.setLayoutData(new GridData());


    gridData = new GridData(GridData.FILL_HORIZONTAL);
    final StringParameter pathParameter = new StringParameter(gDefaultDir,
        sCurConfigID);
    pathParameter.setLayoutData(gridData);


    Button browse = new Button(gDefaultDir, SWT.PUSH);
    browse.setImage(imgOpenFolder);
    imgOpenFolder.setBackground(browse.getBackground());
    browse.setToolTipText(MessageText.getString("ConfigView.button.browse"));


    browse.addListener(SWT.Selection, new Listener() {
      /* (non-Javadoc)
       * @see org.eclipse.swt.widgets.Listener#handleEvent(org.eclipse.swt.widgets.Event)

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    if (name == null)
      name = "";
    //setText returns true only if the text is updated
    if (cell.setText(name) || !cell.isValid()) {
      if (bShowIcon && !sortOnlyRefresh) {
        Image icon;
        if (fileInfo == null) {
          icon = null;
        } else {
          // Don't ever dispose of PathIcon, it's cached and may be used elsewhere
          icon = ImageRepository.getPathIcon(fileInfo.getFile(true).getPath(),

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  public void dispose(TableCell cell) {
  }


  private void disposeCellIcon(TableCell cell) {
    final Image img = ((TableCellSWT) cell).getIcon();
    if (img != null) {
      ((TableCellSWT) cell).setIcon(null);
      if (!img.isDisposed()) {
        img.dispose();
      }
    }
  }

View Full Code Here


  


  public Composite configSectionCreate(final Composite parent) {
    ImageLoader imageLoader = ImageLoader.getInstance();
    Image imgOpenFolder = imageLoader.getImage("openFolderButton");


    GridData gridData;
    GridLayout layout;


    // Sub-Section: File -> Torrent
    // ----------------------------
    Composite cTorrent = new Composite(parent, SWT.NULL);


    gridData = new GridData(GridData.VERTICAL_ALIGN_FILL | GridData.HORIZONTAL_ALIGN_FILL);
    cTorrent.setLayoutData(gridData);
    layout = new GridLayout();
    layout.numColumns = 2;
    cTorrent.setLayout(layout);
    
    int userMode = COConfigurationManager.getIntParameter("User Mode");
    
    
    // Save .Torrent files to..
    BooleanParameter saveTorrents = new BooleanParameter(cTorrent, "Save Torrent Files",
                                                         "ConfigView.label.savetorrents");


    Composite gSaveTorrents = new Composite(cTorrent, SWT.NULL);
    gridData = new GridData(GridData.FILL_HORIZONTAL);
    gridData.horizontalIndent = 25;
    gridData.horizontalSpan = 2;
    gSaveTorrents.setLayoutData(gridData);
    layout = new GridLayout();
    layout.marginHeight = 0;
    layout.marginWidth = 0;
    layout.numColumns = 3;
    gSaveTorrents.setLayout(layout);


    Label lSaveDir = new Label(gSaveTorrents, SWT.NULL);
    Messages.setLanguageText(lSaveDir, "ConfigView.label.savedirectory");


    gridData = new GridData(GridData.FILL_HORIZONTAL);
    final StringParameter torrentPathParameter = new StringParameter(gSaveTorrents,
                                                                     "General_sDefaultTorrent_Directory");
    torrentPathParameter.setLayoutData(gridData);


    Button browse2 = new Button(gSaveTorrents, SWT.PUSH);
    browse2.setImage(imgOpenFolder);
    imgOpenFolder.setBackground(browse2.getBackground());
    browse2.setToolTipText(MessageText.getString("ConfigView.button.browse"));


    browse2.addListener(SWT.Selection, new Listener() {
      /* (non-Javadoc)
       * @see org.eclipse.swt.widgets.Listener#handleEvent(org.eclipse.swt.widgets.Event)
       */
      public void handleEvent(Event event) {
        DirectoryDialog dialog = new DirectoryDialog(parent.getShell(), SWT.APPLICATION_MODAL);
        dialog.setFilterPath(torrentPathParameter.getValue());
        dialog.setText(MessageText.getString("ConfigView.dialog.choosedefaulttorrentpath"));
        String path = dialog.open();
        if (path != null) {
          torrentPathParameter.setValue(path);
        }
      }
    });
    browse2.setLayoutData(new GridData());


    gridData = new GridData();
    gridData.horizontalSpan = 2;
    new BooleanParameter(gSaveTorrents, "Save Torrent Backup",
                        "ConfigView.label.savetorrentbackup").setLayoutData(gridData);


    Control[] controls = new Control[]{ gSaveTorrents };
    IAdditionalActionPerformer grayPathAndButton1 = new ChangeSelectionActionPerformer(controls);
    saveTorrents.setAdditionalActionPerformer(grayPathAndButton1);


    gridData = new GridData();
    gridData.horizontalSpan = 2;
    new BooleanParameter(
        cTorrent, 
      "Default Start Torrents Stopped",
        "ConfigView.label.defaultstarttorrentsstopped").setLayoutData(gridData);




    // Watch Folder
    BooleanParameter watchFolder = new BooleanParameter(cTorrent, "Watch Torrent Folder",
                                                        "ConfigView.label.watchtorrentfolder");


    Composite gWatchFolder = new Composite(cTorrent, SWT.NULL);
    gridData = new GridData(GridData.FILL_HORIZONTAL);
    gridData.horizontalIndent = 25;
    gridData.horizontalSpan = 2;
    gWatchFolder.setLayoutData(gridData);
    layout = new GridLayout();
    layout.marginHeight = 0;
    layout.marginWidth = 0;
    layout.numColumns = 3;
    gWatchFolder.setLayout(layout);


    Label lImportDir = new Label(gWatchFolder, SWT.NULL);
    Messages.setLanguageText(lImportDir, "ConfigView.label.importdirectory");


    gridData = new GridData(GridData.FILL_HORIZONTAL);
    final StringParameter watchFolderPathParameter = new StringParameter(gWatchFolder,
                                                                         "Watch Torrent Folder Path", "");
    watchFolderPathParameter.setLayoutData(gridData);


    Button browse4 = new Button(gWatchFolder, SWT.PUSH);
    browse4.setImage(imgOpenFolder);
    imgOpenFolder.setBackground(browse4.getBackground());
    browse4.setToolTipText(MessageText.getString("ConfigView.button.browse"));


    browse4.addListener(SWT.Selection, new Listener() {
      public void handleEvent(Event event) {
        DirectoryDialog dialog = new DirectoryDialog(parent.getShell(), SWT.APPLICATION_MODAL);

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          TOTorrent torrent = item.getTorrent();
          String path = torrent.getFiles()[0].getRelativePath();
          
          if (path != null) {
            // Don't ever dispose of PathIcon, it's cached and may be used elsewhere
            Image icon = ImageRepository.getPathIcon(path, false, torrent != null
                && !torrent.isSimpleTorrent());
            ((TableCellSWT) cell).setIcon(icon);
          }
        } catch (Exception e) {
        }

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      for(int i = 0 ; i < NB_ANGLES ; i++) {
        rs[i] = Math.sqrt(1/(deltaYXs[i] * deltaYXs[i] / (a*a) + deltaYYs[i] * deltaYYs[i] / (b * b)));
        perimeter += rs[i];
      }
    }
    Image buffer = new Image(display,panelSize.x,panelSize.y);
    GC gcBuffer = new GC(buffer);    
    gcBuffer.setBackground(Colors.white);   
    gcBuffer.setForeground(Colors.blue);
    gcBuffer.fillRectangle(0,0,panelSize.x,panelSize.y);


    if(SWT.getVersion() >= 3138 && antiAliasingAvailable) {
      try {
        //gcBuffer.setTextAntialias(SWT.ON);
        //gcBuffer.setAntialias(SWT.ON);
      } catch(Exception e) {
        antiAliasingAvailable = false;
      }
    }
    
    gcBuffer.setBackground(Colors.blues[Colors.BLUES_MIDLIGHT]);      
    
    int nbPeers = sortedPeers.length;
    
    int iAngle = 0;
    double currentPerimeter = 0;    
    double angle,r;   


    for(int i = 0 ; i < nbPeers ; i++) {
      PEPeer peer = sortedPeers[i];
      do {
        angle = angles[iAngle];
        r     = rs[iAngle];
        currentPerimeter += r;
        if(iAngle + 1 < NB_ANGLES) iAngle++;
      } while( currentPerimeter < i * perimeter / nbPeers);
            
      angle = (4 * i - nbPeers) * Math.PI  / (2 * nbPeers) - Math.PI / 2;
      
      int[] triangle = new int[6];
      
      
      int percent_received   = peer.getPercentDoneOfCurrentIncomingRequest();
      int percent_sent     = peer.getPercentDoneOfCurrentOutgoingRequest();


        // set up base line state
      


      boolean  drawLine = false;
      
        // unchoked
      
      if ( !peer.isChokingMe() || percent_received >= 0 ){
        gcBuffer.setForeground(Colors.blues[1] );
       drawLine = true;
      }


        // unchoking
      
      if ( !peer.isChokedByMe() || percent_sent >= 0 ){
      gcBuffer.setForeground(Colors.blues[3]);
      drawLine = true;
      }
         
        // receiving from choked peer (fast request in)
      
      if ( !peer.isChokingMe() && peer.isUnchokeOverride() && peer.isInteresting()){
      gcBuffer.setForeground(Colors.green);
      drawLine = true;
      }
      
        // sending to choked peer (fast request out)
      
      if ( peer.isChokedByMe() && percent_sent >= 0 ){
      gcBuffer.setForeground(Colors.green);
      drawLine = true;
      }
      
      if ( drawLine ){
    int x1 = x0 + (int) ( r * deltaYXs[iAngle] );
    int y1 = y0 + (int) ( r * deltaYYs[iAngle] );        
    gcBuffer.drawLine(x0,y0,x1,y1);
      }    
      
      
      
      if(percent_received >= 0) {
        gcBuffer.setBackground(Colors.blues[Colors.BLUES_MIDDARK]);
        double r1 = r - r * percent_received / 100;
        triangle[0] = (int) (x0 + (r1-10) * deltaYXs[iAngle] + 0.5);
        triangle[1] = (int) (y0 + (r1-10) * deltaYYs[iAngle] + 0.5);
        
        triangle[2] =  (int) (x0 + deltaXXs[iAngle] * 4 + (r1) * deltaYXs[iAngle] + 0.5);
        triangle[3] =  (int) (y0 + deltaXYs[iAngle] * 4 + (r1) * deltaYYs[iAngle] + 0.5);
        
        
        triangle[4] =  (int) (x0 - deltaXXs[iAngle] * 4 + (r1) * deltaYXs[iAngle] + 0.5);
        triangle[5] =  (int) (y0 - deltaXYs[iAngle] * 4 + (r1) * deltaYYs[iAngle] + 0.5);
        
        gcBuffer.fillPolygon(triangle); 
      }
      
      
      
      if(percent_sent >= 0) {
        gcBuffer.setBackground(Colors.blues[Colors.BLUES_MIDLIGHT]);
        double r1 = r * percent_sent / 100;
        triangle[0] = (int) (x0 + r1 * deltaYXs[iAngle] + 0.5);
        triangle[1] = (int) (y0 + r1 * deltaYYs[iAngle] + 0.5);
        
        triangle[2] =  (int) (x0 + deltaXXs[iAngle] * 4 + (r1-10) * deltaYXs[iAngle] + 0.5);
        triangle[3] =  (int) (y0 + deltaXYs[iAngle] * 4 + (r1-10) * deltaYYs[iAngle] + 0.5);
        
        
        triangle[4] =  (int) (x0 - deltaXXs[iAngle] * 4 + (r1-10) * deltaYXs[iAngle] + 0.5);
        triangle[5] =  (int) (y0 - deltaXYs[iAngle] * 4 + (r1-10) * deltaYYs[iAngle] + 0.5);
        gcBuffer.fillPolygon(triangle); 
      }
      
      
      
      int x1 = x0 + (int) (r * deltaYXs[iAngle]);
      int y1 = y0 + (int) (r * deltaYYs[iAngle]);
      gcBuffer.setBackground(Colors.blues[Colors.BLUES_MIDDARK]);
      if(peer.isSnubbed()) {
        gcBuffer.setBackground(Colors.grey);
      }
      
      /*int PS = (int) (PEER_SIZE);      
        if (deltaXY == 0) {
          PS = (int) (PEER_SIZE * 2);
        } else {
          if (deltaYY > 0) {
            PS = (int) (PEER_SIZE / deltaXY);
          }
        }*/
      //PieUtils.drawPie(gcBuffer,(x1 - PS / 2),y1 - PS / 2,PS,PS,peer.getPercentDoneInThousandNotation() / 10);
      PieUtils.drawPie(gcBuffer,x1 - PEER_SIZE / 2,y1 - PEER_SIZE / 2,PEER_SIZE,PEER_SIZE,peer.getPercentDoneInThousandNotation() / 10);
      
      //gcBuffer.drawText(peer.getIp() , x1 + 8 , y1 , true);
    }
    
    gcBuffer.setBackground(Colors.blues[Colors.BLUES_MIDDARK]);
    PieUtils.drawPie(gcBuffer,x0 - OWN_SIZE / 2 ,y0 - OWN_SIZE / 2,OWN_SIZE,OWN_SIZE,manager.getStats().getCompleted() / 10);
    
    gcBuffer.dispose();
    GC gcPanel = new GC(panel);
    gcPanel.drawImage(buffer,0,0);
    gcPanel.dispose();
    buffer.dispose();   
  }

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  public void dispose(TableCell cell) {
    // only dispose of image here, this method is reused in other methods
    Graphic graphic = cell.getGraphic();
    if (graphic instanceof UISWTGraphic)
    {
      final Image img = ((UISWTGraphic) graphic).getImage();
      if (img != null && !img.isDisposed())
        img.dispose();
    }
  }

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        ++datasourcePiecesPerAvailability[availabilties[i]];
      if (isMe && pePieces[i] != null)
        downloading[availabilties[i]] = true;
    }
    
    Image img = new Image(comp.getDisplay(),pieceDistCanvas.getBounds());
    
    GC gc = new GC(img);


    try
    {

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      // to without a disk manager (stopped) in order to clear the pieces view
      boolean running = manager != null;
      boolean hasGraphic = false;
      Graphic graphic = cell.getGraphic();
      if (graphic instanceof UISWTGraphic) {
        Image img = ((UISWTGraphic) graphic).getImage();
        hasGraphic = img != null && !img.isDisposed();
      }
      final boolean bImageBufferValid = (lastPercentDone == percentDone)
          && cell.isValid() && bNoRed && running == was_running && hasGraphic;
      
      if (bImageBufferValid)
        return;
      
      was_running = running;
      lastPercentDone = percentDone;
      Image piecesImage = null;
      
      if (graphic instanceof UISWTGraphic)
        piecesImage = ((UISWTGraphic) graphic).getImage();
      if (piecesImage != null && !piecesImage.isDisposed())
        piecesImage.dispose();
      
      if (!running) {
        cell.setGraphic(null);
        return;
      }
      
      piecesImage = new Image(SWTThread.getInstance().getDisplay(), newWidth, newHeight);
      final GC gcImage = new GC(piecesImage);
      
      // dm may be null if this is a skeleton file view
      DownloadManager download_manager = fileInfo.getDownloadManager();
      PEPeerManager peer_manager = download_manager == null ? null : download_manager.getPeerManager();

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