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

  1. void setHeaderImageHeight (int value) {
  2.   headerImageHeight = value;
  3.   Point headerSize = header.getSize ();
  4.   int newHeaderHeight = Math.max (fontHeight, headerImageHeight) + 2 * getHeaderPadding ();
  5.   if (headerSize.y != newHeaderHeight) {
  6.     header.setSize (headerSize.x, newHeaderHeight);
  7.   }
  8. }
  9. /**

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

  1. private Diff handlemouseInBirdsEyeView(Canvas canvas, int my) {
  2.   return fMerger.findDiff(getViewportHeight(), fSynchronizedScrolling, canvas.getSize(), my);
  3. }

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

  1. /**
  2.  * Returns the height of the receiver's header
  3.  *
  4.  * @return the height of the header or zero if the header is not visible
  5.  *
  6.  * @exception SWTException <ul>
  7.  *    <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
  8.  *    <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
  9.  * </ul>
  10.  *
  11.  * @since 2.0
  12.  */
  13. public int getHeaderHeight () {
  14.   checkWidget ();
  15.   if (!header.getVisible ()) return 0;
  16.   return header.getSize ().y;
  17. }
  18. int getHeaderPadding () {

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

  1. private RGB posToColor(Event e) {
  2.   Point size = wrapped.getSize();
  3.   int cb = limitInt(e.x * _256 / size.x);
  4.   int cr = limitInt(e.y * _256 / size.y);
  5.   return fromYCbCr(luminance, cb, cr);
  6. }

代码示例来源：origin: BiglySoftware/BiglyBT

  1. @Override
  2.   public void paintControl(PaintEvent e) {
  3.     try{
  4.       Rectangle clipping = e.gc.getClipping();
  5.       int ofs = (labelImage.getSize().x - boundsColor.width) / 2;
  6.       if (paintColorTo > 0) {
  7.         e.gc.drawImage(imgSrc, 0, 0, paintColorTo, boundsColor.height, ofs, 10, paintColorTo, boundsColor.height);
  8.       }
  9.       if (clipping.x + clipping.width > ofs + paintColorTo && imgBounds.width - paintColorTo - 1 > 0) {
  10.         e.gc.drawImage(image,
  11.             paintColorTo + 1, 0, imgBounds.width - paintColorTo - 1, imgBounds.height,
  12.             paintColorTo + 1 + ofs, 10, imgBounds.width - paintColorTo - 1, imgBounds.height);
  13.       }
  14.     }catch( Throwable f ){
  15.       // seen some 'argument not valid errors spewed here, couldn't track down
  16.       // the cause though :( parg.
  17.     }
  18.   }
  19. });

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

  1. @Override
  2. void notifyResize( Point oldSize ) {
  3.  super.notifyResize( oldSize );
  4.  if( !oldSize.equals( getSize() ) ) {
  5.   repaint( getClientArea() );
  6.  }
  7. }

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

  1. public ColorPicker(Composite parent) {
  2.   super(new Canvas(parent, SWT.DOUBLE_BUFFERED));
  3.   setY(128);
  4.   wrapped.addListener(SWT.Paint, e -> {
  5.     Point size = wrapped.getSize();
  6.     Image img = getMapFor(e.display);
  7.     e.gc.drawImage(img, 0, 0, _256, _256, 0, 0, size.x, size.y);
  8.   });
  9.   mouseDown = SwtRx.addListener(wrapped, SWT.MouseDown).map(this::posToColor);
  10.   mouseMove = SwtRx.addListener(wrapped, SWT.MouseMove).map(this::posToColor);
  11. }

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

  1. private void drawRangeIndication(GC gc, Canvas canvas, Rectangle r) {
  2.   final int MARGIN= 3;
  3.   /* cap the height - at least on GTK, large numbers are converted to
  4.    * negatives at some point */
  5.   int height= Math.min(r.y + r.height - MARGIN, canvas.getSize().y);
  6.   gc.setForeground(canvas.getDisplay().getSystemColor(COLOR));
  7.   gc.setLineWidth(0); // NOTE: 0 means width is 1 but with optimized performance
  8.   gc.drawLine(r.x + 4, r.y + 12, r.x + 4, height);
  9.   gc.drawLine(r.x + 4, height, r.x + r.width - MARGIN, height);
  10. }

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

  1. private void drawRangeIndication(GC gc, Canvas canvas, Rectangle r) {
  2.   final int MARGIN= 3;
  3.   /* cap the height - at least on GTK, large numbers are converted to
  4.    * negatives at some point */
  5.   int height= Math.min(r.y + r.height - MARGIN, canvas.getSize().y);
  6.   gc.setForeground(canvas.getDisplay().getSystemColor(COLOR));
  7.   gc.setLineWidth(0); // NOTE: 0 means width is 1 but with optimized performance
  8.   gc.drawLine(r.x + 4, r.y + 12, r.x + 4, height);
  9.   gc.drawLine(r.x + 4, height, r.x + r.width - MARGIN, height);
  10. }

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

  1. /**
  2.  * Marks the region covered by <code>lines</code> as needing to be redrawn.
  3.  *
  4.  * @param lines the lines to be redrawn in document coordinates
  5.  */
  6. protected final void redraw(ILineRange lines) {
  7.   if (fCanvas == null || fCanvas.isDisposed())
  8.     return;
  9.   int firstModelLine= lines.getStartLine();
  10.   int lastModelLine= firstModelLine + lines.getNumberOfLines();
  11.   int firstWidgetLine= JFaceTextUtil.modelLineToWidgetLine(fTextViewer, firstModelLine);
  12.   int lastWidgetLine= JFaceTextUtil.modelLineToWidgetLine(fTextViewer, lastModelLine);
  13.   int from= Math.max(0, fStyledText.getLinePixel(firstWidgetLine));
  14.   // getLinePixel will return the last pixel of the last line if line == lineCount
  15.   int to= Math.min(fCanvas.getSize().y, fStyledText.getLinePixel(lastWidgetLine + 1));
  16.   fCanvas.redraw(0, from, fWidth, to - from, false);
  17. }

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

  1. /**
  2.  * Marks the region covered by <code>lines</code> as needing to be redrawn.
  3.  *
  4.  * @param lines the lines to be redrawn in document coordinates
  5.  */
  6. protected final void redraw(ILineRange lines) {
  7.   if (fCanvas == null || fCanvas.isDisposed())
  8.     return;
  9.   int firstModelLine= lines.getStartLine();
  10.   int lastModelLine= firstModelLine + lines.getNumberOfLines();
  11.   int firstWidgetLine= JFaceTextUtil.modelLineToWidgetLine(fTextViewer, firstModelLine);
  12.   int lastWidgetLine= JFaceTextUtil.modelLineToWidgetLine(fTextViewer, lastModelLine);
  13.   int from= Math.max(0, fStyledText.getLinePixel(firstWidgetLine));
  14.   // getLinePixel will return the last pixel of the last line if line == lineCount
  15.   int to= Math.min(fCanvas.getSize().y, fStyledText.getLinePixel(lastWidgetLine + 1));
  16.   fCanvas.redraw(0, from, fWidth, to - from, false);
  17. }

代码示例来源：origin: BiglySoftware/BiglyBT

  1. @Override
  2.     public void runSupport() {
  3.       if (image == null || image.isDisposed() || labelImage.isDisposed()) {
  4.         return;
  5.       }
  6.       if (display.isDisposed()) {
  7.         return;
  8.       }
  9.       paintColorTo += paintColorDir;
  10.       Utils.execSWTThreadLater(7 * paintColorDir, this);
  11.       int ofs = (labelImage.getSize().x - boundsColor.width) / 2;
  12.       labelImage.redraw(paintColorTo - paintColorDir + ofs, 10, paintColorDir, maxY, true);
  13.       if (paintColorTo >= maxX || paintColorTo <= 0) {
  14.         paintColorTo = 0;
  15.         //paintColorDir = (int) (Math.random() * 5) + 2;
  16.         Image tmp = image;
  17.         image = imgSrc;
  18.         imgSrc = tmp;
  19.       }
  20.     }
  21. });

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

  1. @Override
  2.   public void paintControl(PaintEvent e) {
  3.     Point s= fSummaryHeader.getSize();
  4.     if (fIndicatorColor != null) {
  5.       Display d= fSummaryHeader.getDisplay();
  6.       e.gc.setBackground(getColor(d, fIndicatorColor));
  7.       int min= Math.min(s.x, s.y)-2*INSET;
  8.       Rectangle r= new Rectangle((s.x-min)/2, (s.y-min)/2, min, min);
  9.       e.gc.fillRectangle(r);
  10.       if (d != null)
  11.         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));
  12.       e.gc.setForeground(fSeparatorColor);
  13.       e.gc.setLineWidth(0 /* 1 */);
  14.       e.gc.drawLine(0+1, s.y-1, s.x-1-1, s.y-1);
  15.     }
  16.   }
  17. }

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

  1. public void paintControl(PaintEvent e) {
  2.     
  3.     Point s= fSummaryHeader.getSize();
  4.     
  5.     if (fIndicatorColor != null) {
  6.       Display d= fSummaryHeader.getDisplay();
  7.       e.gc.setBackground(getColor(d, fIndicatorColor));
  8.       int min= Math.min(s.x, s.y)-2*INSET;
  9.       Rectangle r= new Rectangle((s.x-min)/2, (s.y-min)/2, min, min);
  10.       e.gc.fillRectangle(r);
  11.       if (d != null)
  12.         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));
  13.       e.gc.setForeground(fSeparatorColor);
  14.       e.gc.setLineWidth(0 /* 1 */);
  15.       e.gc.drawLine(0+1, s.y-1, s.x-1-1, s.y-1);
  16.     }
  17.   }
  18. }

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

  1. @Override
  2. public void paint(GC gc, Canvas canvas, Rectangle bounds) {
  3.   Point canvasSize= canvas.getSize();
  4.   int x= 0;
  5.   int y= bounds.y;
  6.   int w= canvasSize.x;
  7.   int h= bounds.height;
  8.   int b= 1;
  9.   if (y + h > canvasSize.y)
  10.     h= canvasSize.y - y;
  11.   if (y < 0) {
  12.     h= h + y;
  13.     y= 0;
  14.   }
  15.   if (h <= 0)
  16.     return;
  17.   Image image = getImage(canvas);
  18.   gc.drawImage(image, 0, 0, w, h, x, y, w, h);
  19.   gc.setBackground(canvas.getDisplay().getSystemColor(SWT.COLOR_LIST_SELECTION));
  20.   gc.fillRectangle(x, bounds.y, w, b);
  21.   gc.fillRectangle(x, bounds.y + bounds.height - b, w, b);
  22. }

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

  1. public void paint(GC gc, Canvas canvas, Rectangle bounds) {
  2.   Point canvasSize= canvas.getSize();
  3.   int x= 0;
  4.   int y= bounds.y;
  5.   int w= canvasSize.x;
  6.   int h= bounds.height;
  7.   int b= 1;
  8.   if (y + h > canvasSize.y)
  9.     h= canvasSize.y - y;
  10.   if (y < 0) {
  11.     h= h + y;
  12.     y= 0;
  13.   }
  14.   if (h <= 0)
  15.     return;
  16.   Image image = getImage(canvas);
  17.   gc.drawImage(image, 0, 0, w, h, x, y, w, h);
  18.   gc.setBackground(canvas.getDisplay().getSystemColor(SWT.COLOR_LIST_SELECTION));
  19.   gc.fillRectangle(x, bounds.y, w, b);
  20.   gc.fillRectangle(x, bounds.y + bounds.height - b, w, b);
  21. }

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

  1. @Override
  2. public void paint(GC gc, Canvas canvas, Rectangle bounds) {
  3.   Point canvasSize= canvas.getSize();
  4.   int x= 0;
  5.   int y= bounds.y;
  6.   int w= canvasSize.x;
  7.   int h= bounds.height;
  8.   int b= 1;
  9.   if (y + h > canvasSize.y)
  10.     h= canvasSize.y - y;
  11.   if (y < 0) {
  12.     h= h + y;
  13.     y= 0;
  14.   }
  15.   if (h <= 0)
  16.     return;
  17.   Color currentRangeIndicatorColor= JFaceResources.getColorRegistry().get(RANGE_INDICATOR_COLOR);
  18.   Image image= getImage(canvas, currentRangeIndicatorColor);
  19.   gc.drawImage(image, 0, 0, w, h, x, y, w, h);
  20.   gc.setBackground(currentRangeIndicatorColor);
  21.   gc.fillRectangle(x, bounds.y, w, b);
  22.   gc.fillRectangle(x, bounds.y + bounds.height - b, w, b);
  23.   fLastRangeIndicatorColor= currentRangeIndicatorColor;
  24. }

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

  1. public NoBorderBtn(Composite parent) {
  2.   super(new Canvas(parent, SWT.NONE));
  3.   wrapped.addListener(SWT.Paint, e -> {
  4.     Point size = wrapped.getSize();
  5.     // fill the background based on the "enabled" status
  6.     Color backgroundColor = wrapped.getDisplay().getSystemColor(SWT.COLOR_WIDGET_BACKGROUND);
  7.     e.gc.setBackground(backgroundColor);
  8.     e.gc.fillRectangle(0, 0, size.x, size.y);
  9.     // draw the image
  10.     if (img != null) {
  11.       int deltaX = size.x - imgBounds.width;
  12.       int deltaY = size.y - imgBounds.height;
  13.       e.gc.drawImage(img, deltaX / 2, deltaY / 2);
  14.     }
  15.   });
  16.   // send a selection event on each click (if we aren't disabled)
  17.   wrapped.addListener(SWT.MouseDown, e -> {
  18.     if (enabled) {
  19.       selection.onNext(this);
  20.     }
  21.   });
  22.   // send a "completed" event when we finish
  23.   wrapped.addListener(SWT.Dispose, e -> {
  24.     selection.onComplete();
  25.   });
  26. }

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

  1. /**
  2.  * Double buffer drawing.
  3.  *
  4.  * @param dest the GC to draw into
  5.  */
  6. private void doubleBufferPaint(GC dest) {
  7.   Point size= fCanvas.getSize();
  8.   if (size.x <= 0 || size.y <= 0)
  9.     return;
  10.   if (fBuffer != null) {
  11.     Rectangle r= fBuffer.getBounds();
  12.     if (r.width != size.x || r.height != size.y) {
  13.       fBuffer.dispose();
  14.       fBuffer= null;
  15.     }
  16.   }
  17.   if (fBuffer == null)
  18.     fBuffer= new Image(fCanvas.getDisplay(), size.x, size.y);
  19.   GC gc= new GC(fBuffer);
  20.   gc.setFont(fCanvas.getFont());
  21.   try {
  22.     gc.setBackground(getBackground());
  23.     gc.fillRectangle(0, 0, size.x, size.y);
  24.     doPaint(gc);
  25.   } finally {
  26.     gc.dispose();
  27.   }
  28.   dest.drawImage(fBuffer, 0, 0);
  29. }

代码示例来源：origin: BiglySoftware/BiglyBT

  1. @Override
  2.   public void run() {
  3.     if(!canvas.isDisposed() && images != null) {
  4.       currentImage++;
  5.       if(currentImage >= images.length) {
  6.         currentImage = 0;
  7.       }
  8.       if(currentImage < images.length) {
  9.         Image image = images[currentImage];
  10.         if(image != null && !image.isDisposed()) {
  11.           Rectangle imageBounds = image.getBounds();
  12.           Image tempImage = new Image(canvas.getDisplay(),new Rectangle( 0, 0, imageBounds.width, imageBounds.height ));
  13.           GC gcImage = new GC(tempImage);
  14.           gcImage.setBackground( canvas.getBackground());
  15.           gcImage.fillRectangle( new Rectangle( 0, 0, imageBounds.width, imageBounds.width ));
  16.           gcImage.drawImage(image, 0, 0 );
  17.           GC gc = new GC(canvas);
  18.           Point canvasSize = canvas.getSize();
  19.           gc.drawImage( tempImage, (canvasSize.x-imageBounds.width)/2, (canvasSize.y-imageBounds.height)/2);
  20.           tempImage.dispose();
  21.           gcImage.dispose();
  22.           gc.dispose();
  23.         }
  24.       }
  25.     }
  26.   }
  27. });

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