Package org.eclipse.swt.widgets

Examples of org.eclipse.swt.widgets.Canvas

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    canvas.setLayoutData(gd);
    return canvas;
  }
 
  private Canvas createFillRegion(Composite parent, Image image){
    final Canvas canvas = new Canvas(parent,SWT.NONE);
    canvas.setBackgroundImage(image);       
    canvas.setLayoutData(createFilledLayoutData(image.getBounds()));
    return canvas;
  }
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    }
    return gd;
  }
 
  private Canvas createEmptyRegion(Composite parent, Image image){
    final Canvas canvas = new Canvas(parent,SWT.NONE);
    canvas.setBackgroundImage(image);   
    final GridData gd = new GridData(horizontal?SWT.FILL:SWT.FILL,horizontal?SWT.BEGINNING:SWT.FILL,horizontal,!horizontal);
    if(horizontal){
      gd.minimumHeight = recommendedHeight;       
      gd.heightHint = recommendedHeight;
    }else{
      gd.minimumWidth = recommendedWidth;
      gd.widthHint = recommendedWidth;
    }
    canvas.setLayoutData(gd);
    return canvas;
  }
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    fTextViewer.addViewportListener(fInternalListener);
    fTextViewer.addTextListener(fInternalListener);

    fStyledText= fTextViewer.getTextWidget();

    fCanvas= new Canvas(parentControl, getCanvasStyle());

    fCanvas.setBackground(getDefaultBackground());
    fCanvas.setFont(getFont());

    fCanvas.addPaintListener(new PaintListener() {
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    fTextViewer= textViewer;

    fHitDetectionCursor= new Cursor(parent.getDisplay(), SWT.CURSOR_HAND);

    fHeader= new Canvas(parent, SWT.NONE);

    if (fAnnotationAccess instanceof IAnnotationAccessExtension) {
      fHeader.addMouseTrackListener(new MouseTrackAdapter() {
        /*
         * @see org.eclipse.swt.events.MouseTrackAdapter#mouseHover(org.eclipse.swt.events.MouseEvent)
         * @since 3.3
         */
        public void mouseEnter(MouseEvent e) {
          updateHeaderToolTipText();
        }
      });
    }

    fCanvas= new Canvas(parent, SWT.NO_BACKGROUND);

    fCanvas.addPaintListener(new PaintListener() {
      public void paintControl(PaintEvent event) {
        if (fTextViewer != null)
          doubleBufferPaint(event.gc);
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    fParentRuler= parentRuler;
    fCachedTextViewer= parentRuler.getTextViewer();
    fCachedTextWidget= fCachedTextViewer.getTextWidget();

    fCanvas= new Canvas(parentControl, SWT.NONE);
    fCanvas.setBackground(getBackground());

    fCanvas.addPaintListener(new PaintListener() {
      public void paintControl(PaintEvent event) {
        if (fCachedTextViewer != null)
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    fParentRuler= parentRuler;
    fCachedTextViewer= parentRuler.getTextViewer();
    fCachedTextWidget= fCachedTextViewer.getTextWidget();

    fCanvas= new Canvas(parentControl, SWT.NO_FOCUS ) {
       /*
        * @see org.eclipse.swt.widgets.Control#addMouseListener(org.eclipse.swt.events.MouseListener)
        * @since 3.4
        */
       public void addMouseListener(MouseListener listener) {
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   */
  protected void createControl(Composite parent, int styles) {

    if (fVerticalRuler != null || fOverviewRuler != null) {
      styles= (styles & ~SWT.BORDER);
      fComposite= new Canvas(parent, SWT.NONE);
      fComposite.setLayout(createLayout());
      parent= fComposite;
    }

    super.createControl(parent, styles);
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    gridLayout.horizontalSpacing = 0;
    setLayout( gridLayout );
  }

  private void createCanvas() {
    indicatorCanvas = new Canvas( this, SWT.NONE );
    indicatorCanvas.setLayoutData( new GridData( SWT.CENTER, SWT.CENTER, true, true ) );
  }
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        int x = display.getBounds().width;
        int y = display.getBounds().height;
        shell.setBounds(x/4, y/4, GRAPH_WIDTH, GRAPH_HEIGHT);
        shell.setLayout(new FillLayout());
       
        final Canvas canvas = new Canvas(shell, SWT.NONE);
        long currentValue = Long.parseLong(data.getValue().toString());
        long mValue = getGraphMaxValue(currentValue);
        canvas.setData(MAX_VALUE, mValue);
        canvas.setData(GRAPH_VALUES, new long[] {0,0,0,0,0,currentValue});
       
        canvas.setBackground(Display.getCurrent().getSystemColor(SWT.COLOR_WHITE));
        canvas.addPaintListener(new PaintListener()
            {
                public void paintControl(PaintEvent event)
                {
                    Canvas canvas = (Canvas)event.widget;
                    int maxX = canvas.getSize().x;
                    int maxY = canvas.getSize().y;
                    event.gc.fillRectangle(canvas.getBounds());
                    event.gc.setForeground(Display.getCurrent().getSystemColor(SWT.COLOR_BLACK));
                    event.gc.setLineWidth(4);
                   
                    Object canvasData = canvas.getData(MAX_VALUE);
                    String str = canvasData.toString();
                    long maxValue = Long.parseLong(str);
                    // Set the graph dimensions
                    event.gc.drawText("0", startX - 40, maxY - startY - 10);
                    event.gc.drawText("" + maxValue/2, startX - 40, maxY/2);
                    event.gc.drawText("" + maxValue, startX - 40, startY);
                   
                    // horizontal line
                    event.gc.drawLine(startX, maxY - startY, maxX - 60, maxY - startY);
                    // vertical line
                    event.gc.drawLine(startX, maxY - startY, startX, startY);
                    // set graph text
                    event.gc.drawText(data.getName(), startX - 40, startY - 40);
                    event.gc.drawText("25 sec", startX, maxY - startY + 10);
                    event.gc.drawText("20 sec", startX + GRAPH_ITEM_GAP, maxY - startY + 10);
                    event.gc.drawText("15 sec", startX + GRAPH_ITEM_GAP * 2, maxY - startY + 10);
                    event.gc.drawText("10 sec", startX + GRAPH_ITEM_GAP * 3, maxY - startY + 10);
                    event.gc.drawText(" 5 sec", startX + GRAPH_ITEM_GAP * 4, maxY - startY + 10);
                    event.gc.drawText(" 0 sec", startX + GRAPH_ITEM_GAP * 5, maxY - startY + 10);
                   
                    // plot the graph now for values
                    event.gc.setForeground(Display.getCurrent().getSystemColor(SWT.COLOR_BLUE));
                    canvasData = canvas.getData(GRAPH_VALUES);
                    long[] graphValues = (long[]) canvasData;
                    for (int i = 0; i < graphValues.length; i++)
                    {
                        int x = startX + i * GRAPH_ITEM_GAP;
                        int yTotalLength = (maxY - 2 * startY);
 
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        int x = display.getBounds().width;
        int y = display.getBounds().height;
        shell.setBounds(x/4, y/4, GRAPH_WIDTH, GRAPH_HEIGHT);
        shell.setLayout(new FillLayout());
       
        final Canvas canvas = new Canvas(shell, SWT.NONE);
        long currentValue = Long.parseLong(data.getValue().toString());
        long mValue = getGraphMaxValue(currentValue);
        canvas.setData(MAX_VALUE, mValue);
        canvas.setData(GRAPH_VALUES, new long[] {0,0,0,0,0,currentValue});
       
        canvas.setBackground(Display.getCurrent().getSystemColor(SWT.COLOR_WHITE));
        canvas.addPaintListener(new PaintListener()
            {
                public void paintControl(PaintEvent event)
                {
                    Canvas canvas = (Canvas)event.widget;
                    int maxX = canvas.getSize().x;
                    int maxY = canvas.getSize().y;
                    event.gc.fillRectangle(canvas.getBounds());
                    event.gc.setForeground(Display.getCurrent().getSystemColor(SWT.COLOR_BLACK));
                    event.gc.setLineWidth(4);
                   
                    Object canvasData = canvas.getData(MAX_VALUE);
                    String str = canvasData.toString();
                    long maxValue = Long.parseLong(str);
                    // Set the graph dimensions
                    event.gc.drawText("0", startX - 40, maxY - startY - 10);
                    event.gc.drawText("" + maxValue/2, startX - 40, maxY/2);
                    event.gc.drawText("" + maxValue, startX - 40, startY);
                   
                    // horizontal line
                    event.gc.drawLine(startX, maxY - startY, maxX - 60, maxY - startY);
                    // vertical line
                    event.gc.drawLine(startX, maxY - startY, startX, startY);
                    // set graph text
                    event.gc.drawText(data.getName(), startX - 40, startY - 40);
                    event.gc.drawText("25 sec", startX, maxY - startY + 10);
                    event.gc.drawText("20 sec", startX + GRAPH_ITEM_GAP, maxY - startY + 10);
                    event.gc.drawText("15 sec", startX + GRAPH_ITEM_GAP * 2, maxY - startY + 10);
                    event.gc.drawText("10 sec", startX + GRAPH_ITEM_GAP * 3, maxY - startY + 10);
                    event.gc.drawText(" 5 sec", startX + GRAPH_ITEM_GAP * 4, maxY - startY + 10);
                    event.gc.drawText(" 0 sec", startX + GRAPH_ITEM_GAP * 5, maxY - startY + 10);
                   
                    // plot the graph now for values
                    event.gc.setForeground(Display.getCurrent().getSystemColor(SWT.COLOR_BLUE));
                    canvasData = canvas.getData(GRAPH_VALUES);
                    long[] graphValues = (long[]) canvasData;
                    for (int i = 0; i < graphValues.length; i++)
                    {
                        int x = startX + i * GRAPH_ITEM_GAP;
                        int yTotalLength = (maxY - 2 * startY);
 
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