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

    gridData.horizontalIndent = 15;
    gridData.horizontalSpan = 2;
    cMaxUploadSpeedOptionsArea.setLayoutData(gridData);


    ImageLoader imageLoader = ImageLoader.getInstance();
    Image img = imageLoader.getImage("subitem");


    label = new Label(cMaxUploadSpeedOptionsArea, SWT.NULL);
    img.setBackground(label.getBackground());
    gridData = new GridData(GridData.VERTICAL_ALIGN_BEGINNING);
    label.setLayoutData(gridData);
    label.setImage(img);


    gridData = new GridData();
    final BooleanParameter enable_seeding_rate = new BooleanParameter(
        cMaxUploadSpeedOptionsArea, "enable.seedingonly.upload.rate",
        "ConfigView.label.maxuploadspeedseeding");
    enable_seeding_rate.setLayoutData(gridData);


    gridData = new GridData();
    final IntParameter paramMaxUploadSpeedSeeding = new IntParameter(
        cMaxUploadSpeedOptionsArea, "Max Upload Speed Seeding KBs", 0, -1);
    paramMaxUploadSpeedSeeding.setLayoutData(gridData);
    enable_seeding_rate
        .setAdditionalActionPerformer(new ChangeSelectionActionPerformer(
            paramMaxUploadSpeedSeeding.getControl()));


    if (userMode < 2) {
      // wiki link


      Composite cWiki = new Composite(cSection, SWT.COLOR_GRAY);
      gridData = new GridData(GridData.VERTICAL_ALIGN_FILL
          | GridData.HORIZONTAL_ALIGN_FILL);
      gridData.horizontalSpan = 2;
      cWiki.setLayoutData(gridData);
      layout = new GridLayout();
      layout.numColumns = 4;
      layout.marginHeight = 0;
      cWiki.setLayout(layout);


      gridData = new GridData();
      gridData.horizontalIndent = 6;
      gridData.horizontalSpan = 2;
      label = new Label(cWiki, SWT.NULL);
      label.setLayoutData(gridData);
      label.setText(MessageText.getString("Utils.link.visit") + ":");


      gridData = new GridData();
      gridData.horizontalIndent = 10;
      gridData.horizontalSpan = 2;
      new LinkLabel(cWiki, gridData, "ConfigView.section.transfer.speeds.wiki",
          "http://wiki.vuze.com/w/Good_settings");
    }


    if ( userMode > 1 ){
    
      gridData = new GridData();
      label = new Label(cSection, SWT.NULL);
      label.setLayoutData(gridData);
      Messages.setLanguageText(label, "ConfigView.label.maxuploadswhenbusymin" );


      gridData = new GridData();
      new IntParameter(cSection, "max.uploads.when.busy.inc.min.secs", 0, -1).setLayoutData(gridData);
    }
    
    // max download speed
    gridData = new GridData();
    label = new Label(cSection, SWT.NULL);
    label.setLayoutData(gridData);
    Messages.setLanguageText(label, "ConfigView.label.maxdownloadspeed");
    
    gridData = new GridData();
    final IntParameter paramMaxDownSpeed = new IntParameter(cSection,
        "Max Download Speed KBs", 0, -1);
    paramMaxDownSpeed.setLayoutData(gridData);
        
      // max upload/download limit dependencies
    
    Listener l = new Listener() {
  
      public void handleEvent(Event event) {
        boolean disableAuto = false;
        boolean disableAutoSeeding = false;
        
        if(enable_seeding_rate.isSelected())
        {
          disableAutoSeeding = event.widget == paramMaxUploadSpeedSeeding.getControl();
          disableAuto = event.widget == paramMaxDownSpeed.getControl() || event.widget == paramMaxUploadSpeed.getControl();
        } else
        {
          disableAuto = true;
          disableAutoSeeding = true;
        }
          
          
        if(disableAuto)
          COConfigurationManager.setParameter(TransferSpeedValidator.AUTO_UPLOAD_ENABLED_CONFIGKEY, false);
        if(disableAutoSeeding)
          COConfigurationManager.setParameter(TransferSpeedValidator.AUTO_UPLOAD_SEEDING_ENABLED_CONFIGKEY, false);
      }
    };
    
    paramMaxDownSpeed.getControl().addListener(SWT.Selection, l);
    paramMaxUploadSpeed.getControl().addListener(SWT.Selection, l);
    paramMaxUploadSpeedSeeding.getControl().addListener(SWT.Selection, l);
    
    
    paramMaxUploadSpeed.addChangeListener(new ParameterChangeAdapter() {
      ParameterChangeAdapter me = this;


      public void parameterChanged(Parameter p, boolean internal) {
        CoreWaiterSWT.waitForCoreRunning(new AzureusCoreRunningListener() {


          public void azureusCoreRunning(AzureusCore core) {
            if (paramMaxUploadSpeed.isDisposed()) {
              paramMaxUploadSpeed.removeChangeListener(me);
              return;
            }


            // we don't want to police these limits when auto-speed is running as
            // they screw things up bigtime


            if (TransferSpeedValidator.isAutoSpeedActive(core.getGlobalManager())) {


              return;
            }


            int up_val = paramMaxUploadSpeed.getValue();
            int down_val = paramMaxDownSpeed.getValue();


            if (up_val != 0
                && up_val < COConfigurationManager.CONFIG_DEFAULT_MIN_MAX_UPLOAD_SPEED) {


              if ((down_val == 0) || down_val > (up_val * 2)) {


                paramMaxDownSpeed.setValue(up_val * 2);
              }
            } else {


              if (down_val != manual_max_download_speed[0]) {


                paramMaxDownSpeed.setValue(manual_max_download_speed[0]);
              }
            }
          }


        });
      };
    });


    paramMaxDownSpeed.addChangeListener(new ParameterChangeAdapter() {
      ParameterChangeAdapter me = this;


      public void parameterChanged(Parameter p, boolean internal) {
        CoreWaiterSWT.waitForCoreRunning(new AzureusCoreRunningListener() {


          public void azureusCoreRunning(AzureusCore core) {
            if (paramMaxDownSpeed.isDisposed()) {
              paramMaxDownSpeed.removeChangeListener(me);
              return;
            }


            // we don't want to police these limits when auto-speed is running as
            // they screw things up bigtime


            if (TransferSpeedValidator.isAutoSpeedActive(core.getGlobalManager())) {


              return;
            }


            int up_val = paramMaxUploadSpeed.getValue();
            int down_val = paramMaxDownSpeed.getValue();


            manual_max_download_speed[0] = down_val;


            if (up_val < COConfigurationManager.CONFIG_DEFAULT_MIN_MAX_UPLOAD_SPEED) {


              if (up_val != 0 && up_val < (down_val * 2)) {


                paramMaxUploadSpeed.setValue((down_val + 1) / 2);


              } else if (down_val == 0) {


                paramMaxUploadSpeed.setValue(0);
              }
            }
          }
        });
      }
    });
    
    if (userMode > 0) {
      
        // bias upload to incomplete
      
      BooleanParameter bias_upload = new BooleanParameter(
          cSection, 
          "Bias Upload Enable",
          "ConfigView.label.xfer.bias_up" );
      gridData = new GridData();
      gridData.horizontalSpan = 2;
      bias_upload.setLayoutData(gridData);
      


      final Composite bias_slack_area = new Composite(cSection, SWT.NULL);
      layout = new GridLayout();
      layout.numColumns = 3;
      layout.marginWidth = 0;
      layout.marginHeight = 0;
      bias_slack_area.setLayout(layout);
      gridData = new GridData();
      gridData.horizontalIndent = 15;
      gridData.horizontalSpan = 2;
      bias_slack_area.setLayoutData(gridData);


      label = new Label(bias_slack_area, SWT.NULL);
      gridData = new GridData(GridData.VERTICAL_ALIGN_BEGINNING);
      label.setLayoutData(gridData);
      label.setImage(img);
      
      label = new Label(bias_slack_area, SWT.NULL);
      Messages.setLanguageText(label, "ConfigView.label.xfer.bias_slack");


      IntParameter bias_slack = new IntParameter(
          bias_slack_area, "Bias Upload Slack KBs", 1, -1);
      
      
      final Composite bias_unlimited_area = new Composite(cSection, SWT.NULL);
      layout = new GridLayout();
      layout.numColumns = 2;
      layout.marginWidth = 0;
      layout.marginHeight = 0;
      bias_unlimited_area.setLayout(layout);
      gridData = new GridData();
      gridData.horizontalIndent = 15;
      gridData.horizontalSpan = 2;
      bias_unlimited_area.setLayoutData(gridData);


      label = new Label(bias_unlimited_area, SWT.NULL);
      gridData = new GridData(GridData.VERTICAL_ALIGN_BEGINNING);
      label.setLayoutData(gridData);
      label.setImage(img);


      
      BooleanParameter bias_no_limit = new BooleanParameter(
          bias_unlimited_area, 
          "Bias Upload Handle No Limit",
          "ConfigView.label.xfer.bias_no_limit" );
            
      bias_upload.setAdditionalActionPerformer(
          new ChangeSelectionActionPerformer(
          new Parameter[]{ bias_slack, bias_no_limit} ));
    }


    if (userMode > 0) {
      
        // AUTO GROUP
      
      Group auto_group = new Group(cSection, SWT.NULL);
      
      Messages.setLanguageText(auto_group, "group.auto");
      
      GridLayout auto_layout = new GridLayout();
      
      auto_layout.numColumns = 2;


      auto_group.setLayout(auto_layout);


      gridData = new GridData(GridData.FILL_HORIZONTAL);
      gridData.horizontalSpan = 2;
      auto_group.setLayoutData(gridData);


      BooleanParameter auto_adjust = new BooleanParameter(
          auto_group, 
          "Auto Adjust Transfer Defaults",
          "ConfigView.label.autoadjust" );
      
      gridData = new GridData();
      gridData.horizontalSpan = 2;


      auto_adjust.setLayoutData( gridData );


      // max uploads
      gridData = new GridData();
      label = new Label(auto_group, SWT.NULL);
      label.setLayoutData(gridData);
      Messages.setLanguageText(label, "ConfigView.label.maxuploads");


      gridData = new GridData();
      IntParameter paramMaxUploads = new IntParameter(auto_group, "Max Uploads",
          2, -1);
      paramMaxUploads.setLayoutData(gridData);


        // max uploads when seeding
      
      final Composite cMaxUploadsOptionsArea = new Composite(auto_group, SWT.NULL);
      layout = new GridLayout();
      layout.numColumns = 3;
      layout.marginWidth = 0;
      layout.marginHeight = 0;
      cMaxUploadsOptionsArea.setLayout(layout);
      gridData = new GridData();
      gridData.horizontalIndent = 15;
      gridData.horizontalSpan = 2;
      cMaxUploadsOptionsArea.setLayoutData(gridData);
      label = new Label(cMaxUploadsOptionsArea, SWT.NULL);
      img.setBackground(label.getBackground());
      gridData = new GridData(GridData.VERTICAL_ALIGN_BEGINNING);
      label.setLayoutData(gridData);
      label.setImage(img);
      
      gridData = new GridData();
      BooleanParameter enable_seeding_uploads = new BooleanParameter(
          cMaxUploadsOptionsArea, "enable.seedingonly.maxuploads",
          "ConfigView.label.maxuploadsseeding");
      enable_seeding_uploads.setLayoutData(gridData);


      gridData = new GridData();
      final IntParameter paramMaxUploadsSeeding = new IntParameter(
          cMaxUploadsOptionsArea, "Max Uploads Seeding", 2, -1);
      paramMaxUploadsSeeding.setLayoutData(gridData);


      
      
      ////


      gridData = new GridData();
      label = new Label(auto_group, SWT.NULL);
      label.setLayoutData(gridData);
      Messages.setLanguageText(label, "ConfigView.label.max_peers_per_torrent");


      gridData = new GridData();
      IntParameter paramMaxClients = new IntParameter(auto_group,
          "Max.Peer.Connections.Per.Torrent");
      paramMaxClients.setLayoutData(gridData);


      
      /////
      
        // max peers when seeding
      
      final Composite cMaxPeersOptionsArea = new Composite(auto_group, SWT.NULL);
      layout = new GridLayout();
      layout.numColumns = 3;
      layout.marginWidth = 0;
      layout.marginHeight = 0;
      cMaxPeersOptionsArea.setLayout(layout);
      gridData = new GridData();
      gridData.horizontalIndent = 15;
      gridData.horizontalSpan = 2;
      cMaxPeersOptionsArea.setLayoutData(gridData);
      label = new Label(cMaxPeersOptionsArea, SWT.NULL);
      img.setBackground(label.getBackground());
      gridData = new GridData(GridData.VERTICAL_ALIGN_BEGINNING);
      label.setLayoutData(gridData);
      label.setImage(img);
      
      gridData = new GridData();

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


    GridData gridData;
    GridLayout layout;


    Composite gStats = new Composite(parent, SWT.NULL);
    gridData = new GridData(GridData.VERTICAL_ALIGN_FILL | GridData.HORIZONTAL_ALIGN_FILL);
    gStats.setLayoutData(gridData);
    layout = new GridLayout();
    layout.numColumns = 3;
    gStats.setLayout(layout);


    // row


    gridData = new GridData();
    gridData.horizontalSpan = 3;
    BooleanParameter enableStats = 
        new BooleanParameter(gStats, "Stats Enable",
                             "ConfigView.section.stats.enable");
    enableStats.setLayoutData(gridData);


    Control[] controls = new Control[14];


    // row


    Label lStatsPath = new Label(gStats, SWT.NULL);
    Messages.setLanguageText(lStatsPath, "ConfigView.section.stats.defaultsavepath"); //$NON-NLS-1$


    gridData = new GridData();
    gridData.widthHint = 150;
    final StringParameter pathParameter = new StringParameter(gStats, "Stats Dir", ""); //$NON-NLS-1$ //$NON-NLS-2$
    pathParameter.setLayoutData(gridData);
    controls[0] = lStatsPath;
    controls[1] = pathParameter.getControl();
    Button browse = new Button(gStats, SWT.PUSH);
    browse.setImage(imgOpenFolder);
    imgOpenFolder.setBackground(browse.getBackground());
    browse.setToolTipText(MessageText.getString("ConfigView.button.browse"));
    controls[2] = 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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  public void setOrientation(int orientation) {
    this.orientation = orientation;
  }
  
  public Image getBackgroundImage() {
    Image imageRowBG = row.getBackgroundImage();
    if (imageRowBG != null) {
      Rectangle bounds = super.getBounds();
      
      int wInside = bounds.width - (marginWidth * 2);
      int hInside = bounds.height - (marginHeight * 2);
      Image imageCellBG = new Image(Display.getDefault(), wInside, hInside);
      GC gc = new GC(imageCellBG);
      gc.drawImage(imageRowBG, bounds.x + marginWidth, 0 + marginHeight,
          wInside, hInside, 0, 0, wInside, hInside);
      gc.dispose();
      
      return imageCellBG;
    }
    
    TableOrTreeSWT table = row.getTable();
    
    Rectangle bounds = super.getBounds();
    
    if (bounds.isEmpty()) {
      return null;
    }
    
    Image image = new Image(Display.getDefault(), bounds.width
        - (marginWidth * 2), bounds.height - (marginHeight * 2));
    
    GC gc = new GC(image);
    gc.setForeground(getBackground());
    gc.setBackground(getBackground());

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    private Image createImage(String resourcePath) throws IOException {
        InputStream in = null;
        try {
            in = getResourceAsStream(resourcePath);
            return new Image(Display.getCurrent(),in);
        } finally {
            if (in != null) {
                try {
                    in.close();
                } catch (IOException e) {

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        _toolbarComposite.addListener(SWT.Resize, new Listener() {
            public void handleEvent(Event event) {
                int height= _toolbarComposite.getClientArea().height;


                    Image image= createGradientImage(height, event.display);
                    _toolbarComposite.setBackgroundImage(image);


            }
        });

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    }
    
    private Image createGradientImage(int height, Display display) {
        int width= 50;


        Image result= new Image(display, width, height);


        GC gc= new GC(result);


        Color colorC= createColor(SWT.COLOR_WIDGET_BACKGROUND, SWT.COLOR_LIST_BACKGROUND, 35, display);
        Color colorD= createColor(SWT.COLOR_WIDGET_BACKGROUND, SWT.COLOR_LIST_BACKGROUND, 45, display);

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  private Image createImage(String resourcePath) throws IOException {
    InputStream in = null;
    try {
      in = getResourceAsStream(resourcePath);
      return new Image(Display.getCurrent(),in);
    } finally {
      if (in != null) {
        try {
          in.close();
        } catch (IOException e) {

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    }


    @Override
    protected void drawCompositeImage(int width, int height) {
        drawImage(_baseImage.getImageData(), 0, 0); 
        Image overlayImage = Plugin.getDefault().getImageRegistry().get(Plugin.IMAGE_WORLD);
        ImageData overlayImageData = overlayImage.getImageData(); 
        int xValue = 5; 
        int yValue = 0; 
        drawImage (overlayImageData, xValue, yValue);        
    }

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  private Image createImage(String resourcePath) throws IOException {
    InputStream in = null;
    try {
      in = getResourceAsStream(resourcePath);
      return new Image(Display.getCurrent(),in);
    } finally {
      if (in != null) {
        try {
          in.close();
        } catch (IOException e) {

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 *
 */
public class PieUtils {


  private static Image computePie(Display display,int width,int height,int percent) {
    Image image = new Image(display,width,height);
    GC gcImage = new GC(image);
    gcImage.setForeground(Colors.blue);
    int angle = (percent * 360) / 100;
    gcImage.setBackground(Colors.blues[Colors.BLUES_MIDDARK]);
    gcImage.fillArc(0,0,width,height,90-angle,angle);

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