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


                if (imageDescriptor == null) {
                    return null;
                }


                Image icon = (Image) images.get(imageDescriptor);
                return icon;
            }


            public String getText(Object object) {
                Assert.isTrue(object instanceof IWorkingSet);

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                if (imageDescriptor == null) {
                    return null;
                }


                Image icon = (Image) images.get(imageDescriptor);
                return icon;
            }

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    if(element instanceof ISynchronizeModelElement) {
        ISynchronizeModelElement node = (ISynchronizeModelElement)element;
        if(node instanceof IAdaptable) {
          SyncInfo info = (SyncInfo)((IAdaptable)node).getAdapter(SyncInfo.class);
          if (info != null) {
            Image result = null;
            IResource resource = info.getLocal();
            result = _designFolderDecorator.decorateImage(image, element);            
            if (result != null) {
              result = _natureDecorator.decorateImage(result, element);
            }

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


    GridData gridData;
    GridLayout layout;


    Composite gLogging = new Composite(parent, SWT.NULL);
    gridData = new GridData(GridData.VERTICAL_ALIGN_FILL | GridData.HORIZONTAL_ALIGN_FILL);
    gLogging.setLayoutData(gridData);
    layout = new GridLayout();
    layout.numColumns = 2;
    gLogging.setLayout(layout);
    
    int userMode = COConfigurationManager.getIntParameter("User Mode");


    
    BooleanParameter enable_logger = new BooleanParameter(gLogging, "Logger.Enabled", CFG_PREFIX + "loggerenable");
    gridData = new GridData();
    gridData.horizontalSpan = 2;
    enable_logger.setLayoutData(gridData);


    // row


    final BooleanParameter enableLogging = 
      new BooleanParameter(gLogging, 
                           "Logging Enable", 
                           CFG_PREFIX + "enable");
    gridData = new GridData();
    gridData.horizontalSpan = 2;
    enableLogging.setLayoutData(gridData);


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




    // row


    Label lStatsPath = new Label(cArea, SWT.NULL);
    Messages.setLanguageText(lStatsPath, CFG_PREFIX + "logdir"); //$NON-NLS-1$


    gridData = new GridData();
    gridData.widthHint = 150;
    final StringParameter pathParameter = new StringParameter(cArea, "Logging Dir"); //$NON-NLS-1$ //$NON-NLS-2$
    pathParameter.setLayoutData(gridData);
    Button browse = new Button(cArea, 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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            size
          });
          //nsImage.retain();
          invoke(nsImage, "retain");
          //Image image = Image.cocoa_new(Display.getCurrent(), SWT.BITMAP, nsImage);
          Image image = (Image) invoke(Image.class, null, "cocoa_new",
              new Class[] {
                Device.class,
                int.class,
                nsimageCls
              }, new Object[] {

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      Label lStatsPath = new Label(gSecurity, SWT.NULL);
      
      Messages.setLanguageText(lStatsPath, "ConfigView.section.security.toolsdir"); //$NON-NLS-1$


      ImageLoader imageLoader = ImageLoader.getInstance();
      Image imgOpenFolder = imageLoader.getImage("openFolderButton");      
      
      gridData = new GridData();
      
      gridData.widthHint = 150;
      
      final StringParameter pathParameter = new StringParameter(gSecurity, "Security.JAR.tools.dir", ""); //$NON-NLS-1$ //$NON-NLS-2$
      
      pathParameter.setLayoutData(gridData);
      
      Button browse = new Button(gSecurity, SWT.PUSH);
      
      browse.setImage(imgOpenFolder);
      
      imgOpenFolder.setBackground(browse.getBackground());
      
      browse.setToolTipText(MessageText.getString("ConfigView.button.browse"));
      
      browse.addListener(SWT.Selection, new Listener() {
        public void handleEvent(Event event) {

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    return REQUIRED_MODE;
  }




  public Composite configSectionCreate(final Composite parent) {
    Image imgOpenFolder = null;
    if (!Constants.isOSX) {
      ImageLoader imageLoader = ImageLoader.getInstance();
      imgOpenFolder = imageLoader.getImage("openFolderButton");      
    }


    GridData gridData;
    GridLayout layout;


    Composite cSection = new Composite(parent, SWT.NULL);
    gridData = new GridData(GridData.VERTICAL_ALIGN_FILL
        | GridData.HORIZONTAL_ALIGN_FILL);
    cSection.setLayoutData(gridData);
    layout = new GridLayout();
    layout.marginWidth = 0;
    //layout.numColumns = 2;
    cSection.setLayout(layout);


    int userMode = COConfigurationManager.getIntParameter("User Mode");
    if (userMode < REQUIRED_MODE) {
      Label label = new Label(cSection, SWT.WRAP);
      gridData = new GridData();
      label.setLayoutData(gridData);


      final String[] modeKeys = {
        "ConfigView.section.mode.beginner",
        "ConfigView.section.mode.intermediate",
        "ConfigView.section.mode.advanced"
      };


      String param1, param2;
      if (REQUIRED_MODE < modeKeys.length)
        param1 = MessageText.getString(modeKeys[REQUIRED_MODE]);
      else
        param1 = String.valueOf(REQUIRED_MODE);


      if (userMode < modeKeys.length)
        param2 = MessageText.getString(modeKeys[userMode]);
      else
        param2 = String.valueOf(userMode);


      label.setText(MessageText.getString("ConfigView.notAvailableForMode",
          new String[] {
            param1,
            param2
          }));


      return cSection;
    }


    Composite cArea = new Composite(cSection, SWT.NONE);
    layout = new GridLayout();
    layout.marginHeight = 0;
    layout.marginWidth = 0;
    layout.numColumns = 4;
    cArea.setLayout(layout);
    cArea.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));


    BooleanParameter d_play_sound = new BooleanParameter(cArea,
        "Play Download Finished", LBLKEY_PREFIX + "playdownloadfinished");


    // OS X counterpart for alerts (see below for what is disabled)
    if (Constants.isOSX) {
      // download info 


      gridData = new GridData();
      gridData.horizontalSpan = 3;
      gridData.widthHint = 0;
      gridData.heightHint = 0;
      Composite d_filler = new Composite(cArea, SWT.NONE);
      d_filler.setSize(0, 0);
      d_filler.setLayoutData(gridData);


      final BooleanParameter d_speechEnabledParameter = new BooleanParameter(
          cArea, "Play Download Finished Announcement", LBLKEY_PREFIX
              + "playdownloadspeech");


      final StringParameter d_speechParameter = new StringParameter(cArea,
          "Play Download Finished Announcement Text");
      gridData = new GridData();
      gridData.horizontalSpan = 3;
      gridData.widthHint = 150;
      d_speechParameter.setLayoutData(gridData);
      ((Text) d_speechParameter.getControl()).setTextLimit(40);


      d_speechEnabledParameter.setAdditionalActionPerformer(new ChangeSelectionActionPerformer(
          d_speechParameter.getControls()));


      final Label d_speechInfo = new Label(cArea, SWT.NONE);
      gridData = new GridData();
      gridData.horizontalSpan = 4;
      gridData.horizontalIndent = 24;
      d_speechInfo.setLayoutData(gridData);


      Messages.setLanguageText(d_speechInfo, LBLKEY_PREFIX
          + "playdownloadspeech.info");
    }


    //Option disabled on OS X, as impossible to make it work correctly
    if (!Constants.isOSX) {


      // download info


      gridData = new GridData(GridData.FILL_HORIZONTAL);


      final StringParameter d_pathParameter = new StringParameter(cArea,
          "Play Download Finished File", "");


      if (d_pathParameter.getValue().length() == 0) {


        d_pathParameter.setValue("<default>");
      }


      d_pathParameter.setLayoutData(gridData);


      Button d_browse = new Button(cArea, SWT.PUSH);


      d_browse.setImage(imgOpenFolder);


      imgOpenFolder.setBackground(d_browse.getBackground());


      d_browse.setToolTipText(MessageText.getString("ConfigView.button.browse"));


      d_browse.addListener(SWT.Selection, new Listener() {
        public void handleEvent(Event event) {
          FileDialog dialog = new FileDialog(parent.getShell(),
              SWT.APPLICATION_MODAL);
          dialog.setFilterExtensions(new String[] { "*.wav"
          });
          dialog.setFilterNames(new String[] { "*.wav"
          });


          dialog.setText(MessageText.getString(INTERFACE_PREFIX + "wavlocation"));


          final String path = dialog.open();


          if (path != null) {


            d_pathParameter.setValue(path);


            new AEThread("SoundTest") {
              public void runSupport() {
                try {
                  Applet.newAudioClip(new File(path).toURL()).play();


                  Thread.sleep(2500);


                } catch (Throwable e) {


                }
              }
            }.start();
          }
        }
      });


      Label d_sound_info = new Label(cArea, SWT.WRAP);
      Messages.setLanguageText(d_sound_info, INTERFACE_PREFIX
          + "wavlocation.info");
      gridData = new GridData(GridData.FILL_HORIZONTAL);
      gridData.widthHint = 100;
      d_sound_info.setLayoutData(gridData);


      d_play_sound.setAdditionalActionPerformer(new ChangeSelectionActionPerformer(
          d_pathParameter.getControls()));
      d_play_sound.setAdditionalActionPerformer(new ChangeSelectionActionPerformer(
          new Control[] {
            d_browse,
            d_sound_info
          }));


      // 
    }


    BooleanParameter f_play_sound = new BooleanParameter(cArea,
        "Play File Finished", LBLKEY_PREFIX + "playfilefinished");


    // OS X counterpart for alerts (see below for what is disabled)


    if (Constants.isOSX) {


      // per-file info


      gridData = new GridData();
      gridData.horizontalSpan = 3;
      gridData.widthHint = 0;
      gridData.heightHint = 0;
      Composite f_filler = new Composite(cArea, SWT.NONE);
      f_filler.setSize(0, 0);
      f_filler.setLayoutData(gridData);


      final BooleanParameter f_speechEnabledParameter = new BooleanParameter(
          cArea, "Play File Finished Announcement", LBLKEY_PREFIX
              + "playfilespeech");


      final StringParameter f_speechParameter = new StringParameter(cArea,
          "Play File Finished Announcement Text");
      gridData = new GridData();
      gridData.horizontalSpan = 3;
      gridData.widthHint = 150;
      f_speechParameter.setLayoutData(gridData);
      ((Text) f_speechParameter.getControl()).setTextLimit(40);


      f_speechEnabledParameter.setAdditionalActionPerformer(new ChangeSelectionActionPerformer(
          f_speechParameter.getControls()));


      final Label speechInfo = new Label(cArea, SWT.NONE);
      gridData = new GridData();
      gridData.horizontalSpan = 4;
      gridData.horizontalIndent = 24;
      speechInfo.setLayoutData(gridData);


      Messages.setLanguageText(speechInfo, LBLKEY_PREFIX
          + "playfilespeech.info");
    }


    //Option disabled on OS X, as impossible to make it work correctly
    if (!Constants.isOSX) {


      // file info


      gridData = new GridData(GridData.FILL_HORIZONTAL);


      final StringParameter f_pathParameter = new StringParameter(cArea,
          "Play File Finished File", "");


      if (f_pathParameter.getValue().length() == 0) {


        f_pathParameter.setValue("<default>");
      }


      f_pathParameter.setLayoutData(gridData);


      Button f_browse = new Button(cArea, SWT.PUSH);


      f_browse.setImage(imgOpenFolder);


      imgOpenFolder.setBackground(f_browse.getBackground());


      f_browse.setToolTipText(MessageText.getString("ConfigView.button.browse"));


      f_browse.addListener(SWT.Selection, new Listener() {
        public void handleEvent(Event event) {

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    // Named infoObj so code can be copied easily to the other PiecesItem
    PEPeer infoObj = (PEPeer)cell.getDataSource();
    if (infoObj == null)
      return;


    Image img = (Image)infoObj.getData("PiecesImage");
    if (img != null && !img.isDisposed())
      img.dispose();


    infoObj.setData("PiecesImageBuffer", null);
    infoObj.setData("PiecesImage", null);
  }

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    if (drawWidth < 10 || y1 < 3)
      return;
    int[] imageBuffer = (int [])infoObj.getData("PiecesImageBuffer");
    boolean bImageBufferValid = imageBuffer != null && imageBuffer.length == drawWidth;


    Image image = (Image)infoObj.getData("PiecesImage");
    GC gcImage;
    boolean bImageChanged;
    Rectangle imageBounds;
    if (image == null || image.isDisposed()) {
      bImageChanged = true;
    } else {
      imageBounds = image.getBounds();
      bImageChanged = imageBounds.width != newWidth ||
                      imageBounds.height != newHeight;
    }
    if (bImageChanged) {
      if (image != null && !image.isDisposed()) {
        image.dispose();
      }
      image = new Image(SWTThread.getInstance().getDisplay(),
                        newWidth, newHeight);
      imageBounds = image.getBounds();
      bImageBufferValid = false;


      // draw border
      gcImage = new GC(image);
      gcImage.setForeground(Colors.grey);
      if (borderHorizontalSize > 0) {
        if (borderVerticalSize > 0) {
          gcImage.drawRectangle(0, 0, newWidth - 1, newHeight - 1);
        } else {
          gcImage.drawLine(0, 0, newWidth - 1, 0);
          gcImage.drawLine(0, newHeight -1, newWidth - 1, newHeight - 1);
        }
      } else if (borderVerticalSize > 0) {
        gcImage.drawLine(0, 0, 0, newHeight - 1);
        gcImage.drawLine(newWidth - 1, 0, newWidth - 1, newHeight - 1);
      }


      if (borderSplit > 0) {
        gcImage.setForeground(Colors.white);
        gcImage.drawLine(x0, completionHeight + borderHorizontalSize,
                         x1, completionHeight + borderHorizontalSize);
      }
    } else {
      gcImage = new GC(image);
    }


    final BitFlags peerHave = infoObj.getAvailable();
    boolean established = ((PEPeerTransport)infoObj).getConnectionState() == PEPeerTransport.CONNECTION_FULLY_ESTABLISHED;
    
    if (established && peerHave != null && peerHave.flags.length > 0) {
      if (imageBuffer == null || imageBuffer.length != drawWidth) {
        imageBuffer = new int[drawWidth];
      }
        final boolean available[] =peerHave.flags;
    try {
      
      int nbComplete = 0;
      int nbPieces = available.length;
      
      DiskManager disk_manager = infoObj.getManager().getDiskManager();
      DiskManagerPiece[]  pieces = disk_manager==null?null:disk_manager.getPieces();
                      
      
      int a0;
      int a1 = 0;
      for (int i = 0; i < drawWidth; i++) {
        if (i == 0) {
          // always start out with one piece
          a0 = 0;
          a1 = nbPieces / drawWidth;
          if (a1 == 0)
            a1 = 1;
        } else {
          // the last iteration, a1 will be nbPieces
          a0 = a1;
          a1 = ((i + 1) * nbPieces) / (drawWidth);
        }


        int index;
        int nbNeeded = 0;


        if (a1 <= a0) {
          index = imageBuffer[i - 1];
        } else {
          int nbAvailable = 0;
          for (int j = a0; j < a1; j++) {
            if (available[j]) {
              if (pieces==null || !pieces[j].isDone()) {
                nbNeeded++;
              }
              nbAvailable++;
            }
          }
          nbComplete += nbAvailable;
          index = (nbAvailable * Colors.BLUES_DARKEST) / (a1 - a0);
          if (nbNeeded <= nbAvailable / 2)
            index += INDEX_COLOR_FADEDSTARTS;
        }


        if (imageBuffer[i] != index) {
          imageBuffer[i] = index;
          if (bImageBufferValid) {
            bImageChanged = true;
            if (imageBuffer[i] >= INDEX_COLOR_FADEDSTARTS)
              gcImage.setForeground(Colors.faded[index - INDEX_COLOR_FADEDSTARTS]);
            else
              gcImage.setForeground(Colors.blues[index]);
            gcImage.drawLine(i + x0, y0, i + x0, y1);
          }
        }
      }
      if (!bImageBufferValid) {
        if(established) {
          int iLastIndex = imageBuffer[0];
          int iWidth = 1;
          for (int i = 1; i < drawWidth; i++) {
            if (iLastIndex == imageBuffer[i]) {
              iWidth++;
            } else {
              if (iLastIndex >= INDEX_COLOR_FADEDSTARTS) {
                gcImage.setBackground(Colors.faded[iLastIndex - INDEX_COLOR_FADEDSTARTS]);
              } else
                gcImage.setBackground(Colors.blues[iLastIndex]);
              gcImage.fillRectangle(i - iWidth + x0, y0, iWidth, y1 - y0 + 1);
              iWidth = 1;
              iLastIndex = imageBuffer[i];
            }
          }
          if (iLastIndex >= INDEX_COLOR_FADEDSTARTS)
            gcImage.setBackground(Colors.faded[iLastIndex - INDEX_COLOR_FADEDSTARTS]);
          else
            gcImage.setBackground(Colors.blues[iLastIndex]);
          gcImage.fillRectangle(x1 - iWidth + 1, y0, iWidth, y1 - y0 + 1);
          bImageChanged = true;
        }
      }


      int limit = (drawWidth * nbComplete) / nbPieces;
      if (limit < drawWidth) {
        gcImage.setBackground(Colors.blues[Colors.BLUES_LIGHTEST]);
        gcImage.fillRectangle(limit+x0, borderHorizontalSize,
                              x1-limit, completionHeight);
      }
      gcImage.setBackground(Colors.colorProgressBar);
      gcImage.fillRectangle(x0, borderHorizontalSize,
                            limit, completionHeight);
    } catch (Exception e) {
      System.out.println("Error Drawing PiecesItem");
      Debug.printStackTrace( e );
    } } else {
        gcImage.setForeground(Colors.grey);
        gcImage.setBackground(Colors.grey);
        gcImage.fillRectangle(x0,y0,newWidth,y1);
    }
    gcImage.dispose();


    Image oldImage = null;
    Graphic graphic = cell.getGraphic();
    if (graphic instanceof UISWTGraphic) {
      oldImage = ((UISWTGraphic) graphic).getImage();
    }
    if (bImageChanged || image != oldImage || !cell.isValid()) {

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      Field fldHIcon = claSHFILEINFO.getField("hIcon");
      if (fldHIcon.getLong(shfi) == 0) {
        return null;
      }
      Image image = null;
      if (useLong) {
        image = (Image) mImage_win32_new.invoke(null, new Object[] {
          null,
          SWT.ICON,
          fldHIcon.getLong(shfi)

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