org.eclipse.swt.widgets.Canvas.getSize()方法的使用及代码示例

x33g5p2x  于2022-01-18 转载在 其他  
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本文整理了Java中org.eclipse.swt.widgets.Canvas.getSize()方法的一些代码示例，展示了Canvas.getSize()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Canvas.getSize()方法的具体详情如下：
包路径：org.eclipse.swt.widgets.Canvas
类名称：Canvas
方法名：getSize

Canvas.getSize介绍

暂无

代码示例

代码示例来源：origin: org.eclipse.platform/org.eclipse.swt.examples

void setHeaderImageHeight (int value) {
  headerImageHeight = value;
  Point headerSize = header.getSize ();
  int newHeaderHeight = Math.max (fontHeight, headerImageHeight) + 2 * getHeaderPadding ();
  if (headerSize.y != newHeaderHeight) {
    header.setSize (headerSize.x, newHeaderHeight);
  }
}
/**

代码示例来源：origin: org.eclipse.platform/org.eclipse.compare

private Diff handlemouseInBirdsEyeView(Canvas canvas, int my) {
  return fMerger.findDiff(getViewportHeight(), fSynchronizedScrolling, canvas.getSize(), my);
}

代码示例来源：origin: org.eclipse.platform/org.eclipse.swt.examples

/**
 * Returns the height of the receiver's header
 *
 * @return the height of the header or zero if the header is not visible
 *
 * @exception SWTException <ul>
 *    <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
 *    <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
 * </ul>
 *
 * @since 2.0
 */
public int getHeaderHeight () {
  checkWidget ();
  if (!header.getVisible ()) return 0;
  return header.getSize ().y;
}
int getHeaderPadding () {

代码示例来源：origin: diffplug/gradle-and-eclipse-rcp

private RGB posToColor(Event e) {
  Point size = wrapped.getSize();
  int cb = limitInt(e.x * _256 / size.x);
  int cr = limitInt(e.y * _256 / size.y);
  return fromYCbCr(luminance, cb, cr);
}

代码示例来源：origin: BiglySoftware/BiglyBT

@Override
  public void paintControl(PaintEvent e) {
    try{
      Rectangle clipping = e.gc.getClipping();
      int ofs = (labelImage.getSize().x - boundsColor.width) / 2;
      if (paintColorTo > 0) {
        e.gc.drawImage(imgSrc, 0, 0, paintColorTo, boundsColor.height, ofs, 10, paintColorTo, boundsColor.height);
      }
      if (clipping.x + clipping.width > ofs + paintColorTo && imgBounds.width - paintColorTo - 1 > 0) {
        e.gc.drawImage(image,
            paintColorTo + 1, 0, imgBounds.width - paintColorTo - 1, imgBounds.height,
            paintColorTo + 1 + ofs, 10, imgBounds.width - paintColorTo - 1, imgBounds.height);
      }
    }catch( Throwable f ){
      // seen some 'argument not valid errors spewed here, couldn't track down
      // the cause though :( parg.
    }
  }
});

代码示例来源：origin: org.eclipse.rap/org.eclipse.rap.rwt

@Override
void notifyResize( Point oldSize ) {
 super.notifyResize( oldSize );
 if( !oldSize.equals( getSize() ) ) {
  repaint( getClientArea() );
 }
}

代码示例来源：origin: diffplug/gradle-and-eclipse-rcp

public ColorPicker(Composite parent) {
  super(new Canvas(parent, SWT.DOUBLE_BUFFERED));
  setY(128);
  wrapped.addListener(SWT.Paint, e -> {
    Point size = wrapped.getSize();
    Image img = getMapFor(e.display);
    e.gc.drawImage(img, 0, 0, _256, _256, 0, 0, size.x, size.y);
  });
  mouseDown = SwtRx.addListener(wrapped, SWT.MouseDown).map(this::posToColor);
  mouseMove = SwtRx.addListener(wrapped, SWT.MouseMove).map(this::posToColor);
}

代码示例来源：origin: org.eclipse.scout.sdk.deps/org.eclipse.jface.text

private void drawRangeIndication(GC gc, Canvas canvas, Rectangle r) {
  final int MARGIN= 3;
  /* cap the height - at least on GTK, large numbers are converted to
   * negatives at some point */
  int height= Math.min(r.y + r.height - MARGIN, canvas.getSize().y);
  gc.setForeground(canvas.getDisplay().getSystemColor(COLOR));
  gc.setLineWidth(0); // NOTE: 0 means width is 1 but with optimized performance
  gc.drawLine(r.x + 4, r.y + 12, r.x + 4, height);
  gc.drawLine(r.x + 4, height, r.x + r.width - MARGIN, height);
}

代码示例来源：origin: org.eclipse.platform/org.eclipse.jface.text

private void drawRangeIndication(GC gc, Canvas canvas, Rectangle r) {
  final int MARGIN= 3;
  /* cap the height - at least on GTK, large numbers are converted to
   * negatives at some point */
  int height= Math.min(r.y + r.height - MARGIN, canvas.getSize().y);
  gc.setForeground(canvas.getDisplay().getSystemColor(COLOR));
  gc.setLineWidth(0); // NOTE: 0 means width is 1 but with optimized performance
  gc.drawLine(r.x + 4, r.y + 12, r.x + 4, height);
  gc.drawLine(r.x + 4, height, r.x + r.width - MARGIN, height);
}

代码示例来源：origin: org.eclipse.platform/org.eclipse.jface.text

/**
 * Marks the region covered by <code>lines</code> as needing to be redrawn.
 *
 * @param lines the lines to be redrawn in document coordinates
 */
protected final void redraw(ILineRange lines) {
  if (fCanvas == null || fCanvas.isDisposed())
    return;
  int firstModelLine= lines.getStartLine();
  int lastModelLine= firstModelLine + lines.getNumberOfLines();
  int firstWidgetLine= JFaceTextUtil.modelLineToWidgetLine(fTextViewer, firstModelLine);
  int lastWidgetLine= JFaceTextUtil.modelLineToWidgetLine(fTextViewer, lastModelLine);
  int from= Math.max(0, fStyledText.getLinePixel(firstWidgetLine));
  // getLinePixel will return the last pixel of the last line if line == lineCount
  int to= Math.min(fCanvas.getSize().y, fStyledText.getLinePixel(lastWidgetLine + 1));
  fCanvas.redraw(0, from, fWidth, to - from, false);
}

代码示例来源：origin: org.eclipse.scout.sdk.deps/org.eclipse.jface.text

/**
 * Marks the region covered by <code>lines</code> as needing to be redrawn.
 *
 * @param lines the lines to be redrawn in document coordinates
 */
protected final void redraw(ILineRange lines) {
  if (fCanvas == null || fCanvas.isDisposed())
    return;
  int firstModelLine= lines.getStartLine();
  int lastModelLine= firstModelLine + lines.getNumberOfLines();
  int firstWidgetLine= JFaceTextUtil.modelLineToWidgetLine(fTextViewer, firstModelLine);
  int lastWidgetLine= JFaceTextUtil.modelLineToWidgetLine(fTextViewer, lastModelLine);
  int from= Math.max(0, fStyledText.getLinePixel(firstWidgetLine));
  // getLinePixel will return the last pixel of the last line if line == lineCount
  int to= Math.min(fCanvas.getSize().y, fStyledText.getLinePixel(lastWidgetLine + 1));
  fCanvas.redraw(0, from, fWidth, to - from, false);
}

代码示例来源：origin: BiglySoftware/BiglyBT

@Override
    public void runSupport() {
      if (image == null || image.isDisposed() || labelImage.isDisposed()) {
        return;
      }
      if (display.isDisposed()) {
        return;
      }
      paintColorTo += paintColorDir;
      Utils.execSWTThreadLater(7 * paintColorDir, this);
      int ofs = (labelImage.getSize().x - boundsColor.width) / 2;
      labelImage.redraw(paintColorTo - paintColorDir + ofs, 10, paintColorDir, maxY, true);
      if (paintColorTo >= maxX || paintColorTo <= 0) {
        paintColorTo = 0;
        //paintColorDir = (int) (Math.random() * 5) + 2;
        Image tmp = image;
        image = imgSrc;
        imgSrc = tmp;
      }
    }
});

代码示例来源：origin: org.eclipse.platform/org.eclipse.compare

@Override
  public void paintControl(PaintEvent e) {
    Point s= fSummaryHeader.getSize();
    if (fIndicatorColor != null) {
      Display d= fSummaryHeader.getDisplay();
      e.gc.setBackground(getColor(d, fIndicatorColor));
      int min= Math.min(s.x, s.y)-2*INSET;
      Rectangle r= new Rectangle((s.x-min)/2, (s.y-min)/2, min, min);
      e.gc.fillRectangle(r);
      if (d != null)
        drawBevelRect(e.gc, r.x, r.y, r.width -1, r.height -1, d.getSystemColor(SWT.COLOR_WIDGET_NORMAL_SHADOW), d.getSystemColor(SWT.COLOR_WIDGET_HIGHLIGHT_SHADOW));
      e.gc.setForeground(fSeparatorColor);
      e.gc.setLineWidth(0 /* 1 */);
      e.gc.drawLine(0+1, s.y-1, s.x-1-1, s.y-1);
    }
  }
}

代码示例来源：origin: org.eclipse/org.eclipse.compare

public void paintControl(PaintEvent e) {
    
    Point s= fSummaryHeader.getSize();
    
    if (fIndicatorColor != null) {
      Display d= fSummaryHeader.getDisplay();
      e.gc.setBackground(getColor(d, fIndicatorColor));
      int min= Math.min(s.x, s.y)-2*INSET;
      Rectangle r= new Rectangle((s.x-min)/2, (s.y-min)/2, min, min);
      e.gc.fillRectangle(r);
      if (d != null)
        drawBevelRect(e.gc, r.x, r.y, r.width -1, r.height -1, d.getSystemColor(SWT.COLOR_WIDGET_NORMAL_SHADOW), d.getSystemColor(SWT.COLOR_WIDGET_HIGHLIGHT_SHADOW));
      e.gc.setForeground(fSeparatorColor);
      e.gc.setLineWidth(0 /* 1 */);
      e.gc.drawLine(0+1, s.y-1, s.x-1-1, s.y-1);
    }
  }
}

代码示例来源：origin: org.eclipse.scout.sdk.deps/org.eclipse.ui.workbench.texteditor

@Override
public void paint(GC gc, Canvas canvas, Rectangle bounds) {
  Point canvasSize= canvas.getSize();
  int x= 0;
  int y= bounds.y;
  int w= canvasSize.x;
  int h= bounds.height;
  int b= 1;
  if (y + h > canvasSize.y)
    h= canvasSize.y - y;
  if (y < 0) {
    h= h + y;
    y= 0;
  }
  if (h <= 0)
    return;
  Image image = getImage(canvas);
  gc.drawImage(image, 0, 0, w, h, x, y, w, h);
  gc.setBackground(canvas.getDisplay().getSystemColor(SWT.COLOR_LIST_SELECTION));
  gc.fillRectangle(x, bounds.y, w, b);
  gc.fillRectangle(x, bounds.y + bounds.height - b, w, b);
}

代码示例来源：origin: org.eclipse/org.eclipse.ui.workbench.texteditor

public void paint(GC gc, Canvas canvas, Rectangle bounds) {
  Point canvasSize= canvas.getSize();
  int x= 0;
  int y= bounds.y;
  int w= canvasSize.x;
  int h= bounds.height;
  int b= 1;
  if (y + h > canvasSize.y)
    h= canvasSize.y - y;
  if (y < 0) {
    h= h + y;
    y= 0;
  }
  if (h <= 0)
    return;
  Image image = getImage(canvas);
  gc.drawImage(image, 0, 0, w, h, x, y, w, h);
  gc.setBackground(canvas.getDisplay().getSystemColor(SWT.COLOR_LIST_SELECTION));
  gc.fillRectangle(x, bounds.y, w, b);
  gc.fillRectangle(x, bounds.y + bounds.height - b, w, b);
}

代码示例来源：origin: org.eclipse.platform/org.eclipse.ui.workbench.texteditor

@Override
public void paint(GC gc, Canvas canvas, Rectangle bounds) {
  Point canvasSize= canvas.getSize();
  int x= 0;
  int y= bounds.y;
  int w= canvasSize.x;
  int h= bounds.height;
  int b= 1;
  if (y + h > canvasSize.y)
    h= canvasSize.y - y;
  if (y < 0) {
    h= h + y;
    y= 0;
  }
  if (h <= 0)
    return;
  Color currentRangeIndicatorColor= JFaceResources.getColorRegistry().get(RANGE_INDICATOR_COLOR);
  Image image= getImage(canvas, currentRangeIndicatorColor);
  gc.drawImage(image, 0, 0, w, h, x, y, w, h);
  gc.setBackground(currentRangeIndicatorColor);
  gc.fillRectangle(x, bounds.y, w, b);
  gc.fillRectangle(x, bounds.y + bounds.height - b, w, b);
  fLastRangeIndicatorColor= currentRangeIndicatorColor;
}

代码示例来源：origin: com.diffplug.durian/durian-swt

public NoBorderBtn(Composite parent) {
  super(new Canvas(parent, SWT.NONE));
  wrapped.addListener(SWT.Paint, e -> {
    Point size = wrapped.getSize();
    // fill the background based on the "enabled" status
    Color backgroundColor = wrapped.getDisplay().getSystemColor(SWT.COLOR_WIDGET_BACKGROUND);
    e.gc.setBackground(backgroundColor);
    e.gc.fillRectangle(0, 0, size.x, size.y);
    // draw the image
    if (img != null) {
      int deltaX = size.x - imgBounds.width;
      int deltaY = size.y - imgBounds.height;
      e.gc.drawImage(img, deltaX / 2, deltaY / 2);
    }
  });
  // send a selection event on each click (if we aren't disabled)
  wrapped.addListener(SWT.MouseDown, e -> {
    if (enabled) {
      selection.onNext(this);
    }
  });
  // send a "completed" event when we finish
  wrapped.addListener(SWT.Dispose, e -> {
    selection.onComplete();
  });
}

代码示例来源：origin: org.eclipse.platform/org.eclipse.jface.text

/**
 * Double buffer drawing.
 *
 * @param dest the GC to draw into
 */
private void doubleBufferPaint(GC dest) {
  Point size= fCanvas.getSize();
  if (size.x <= 0 || size.y <= 0)
    return;
  if (fBuffer != null) {
    Rectangle r= fBuffer.getBounds();
    if (r.width != size.x || r.height != size.y) {
      fBuffer.dispose();
      fBuffer= null;
    }
  }
  if (fBuffer == null)
    fBuffer= new Image(fCanvas.getDisplay(), size.x, size.y);
  GC gc= new GC(fBuffer);
  gc.setFont(fCanvas.getFont());
  try {
    gc.setBackground(getBackground());
    gc.fillRectangle(0, 0, size.x, size.y);
    doPaint(gc);
  } finally {
    gc.dispose();
  }
  dest.drawImage(fBuffer, 0, 0);
}

代码示例来源：origin: BiglySoftware/BiglyBT

@Override
  public void run() {
    if(!canvas.isDisposed() && images != null) {
      currentImage++;
      if(currentImage >= images.length) {
        currentImage = 0;
      }
      if(currentImage < images.length) {
        Image image = images[currentImage];
        if(image != null && !image.isDisposed()) {
          Rectangle imageBounds = image.getBounds();
          Image tempImage = new Image(canvas.getDisplay(),new Rectangle( 0, 0, imageBounds.width, imageBounds.height ));
          GC gcImage = new GC(tempImage);
          gcImage.setBackground( canvas.getBackground());
          gcImage.fillRectangle( new Rectangle( 0, 0, imageBounds.width, imageBounds.width ));
          gcImage.drawImage(image, 0, 0 );
          GC gc = new GC(canvas);
          Point canvasSize = canvas.getSize();
          gc.drawImage( tempImage, (canvasSize.x-imageBounds.width)/2, (canvasSize.y-imageBounds.height)/2);
          tempImage.dispose();
          gcImage.dispose();
          gc.dispose();
        }
      }
    }
  }
});

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