Examples of java.awt.Graphics.clipRect()

java.awt.Graphics.clipRect()
Intersects the current clip with the specified rectangle. The resulting clipping area is the intersection of the current clipping area and the specified rectangle. If there is no current clipping area, either because the clip has never been set, or the clip has been cleared using setClip(null), the specified rectangle becomes the new clip. This method sets the user clip, which is independent of the clipping associated with device bounds and window visibility. This method can only be used to make the current clip smaller. To set the current clip larger, use any of the setClip methods. Rendering operations have no effect outside of the clipping area. @param x the x coordinate of the rectangle to intersect the clip with @param y the y coordinate of the rectangle to intersect the clip with @param width the width of the rectangle to intersect the clip with @param height the height of the rectangle to intersect the clip with @see #setClip(int,int,int,int) @see #setClip(Shape)

                    repaintRect.width, repaintRect.height, visibleRect);
            if (repaintRect.isEmpty()) {
                g.dispose();
                return;
            }
            g.clipRect(rect.x, rect.y, rect.width, rect.height);
        }
        if (RepaintManager.currentManager(this).isDoubleBufferingEnabled()
                && effectiveRoot instanceof JComponent
                && isDoubleBufferingEnabled(effectiveRoot)) {
            ((JComponent) effectiveRoot).paintDoubleBuffered(g);

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     */
    public void drawImage(Graphics g, Image img, int imgx, int imgy,
        int x, int y, int w, int h) {
  Graphics ng = g.create();
  try {
      ng.clipRect(x, y, w, h);
      ng.drawImage(img, imgx, imgy, this);
  } finally {
      ng.dispose();
  }
    }

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        // create the offscreen buffer and associated Graphics
        offscreen = ImageCache.getImage(this, d.width, d.height);
        offgc = offscreen.getGraphics();
        if(r != null) {
            offgc.clipRect(r.x, r.y, r.width, r.height);
        }
        // clear the exposed area
        offgc.setColor(getBackground());
        offgc.fillRect(0, 0, d.width, d.height);
        offgc.setColor(getForeground());

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   * new translation and clip area.
   */
  public Graphics create(int x, int y, int width, int height) {
    Graphics g = create();
    g.translate(x, y);
    g.clipRect(0, 0, width, height);
    return g;
  }


  /**
   * Returns the current Color. This will be a default value (black) until it

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                        int y = bounds.y;
                        if (clipBounds != null) {
                            bounds = bounds.intersection(clipBounds);
                        }
                        bounds.translate(-x, -y);
                        gComp.clipRect(bounds.x, bounds.y, bounds.width, bounds.height);
                        if (!gComp.getClipBounds().isEmpty()) {
                            comp.paint(gComp);
                        }
                        gComp.dispose();
                    }

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            repaintRect = SwingUtilities.computeIntersection(repaintRect.x, repaintRect.y,
                    repaintRect.width, repaintRect.height, visibleRect);
            if (repaintRect.isEmpty()) {
                return;
            }
            g.clipRect(rect.x, rect.y, rect.width, rect.height);
        }
        if (RepaintManager.currentManager(this).isDoubleBufferingEnabled()
                && effectiveRoot instanceof JComponent
                && isDoubleBufferingEnabled(effectiveRoot)) {
            ((JComponent) effectiveRoot).paintDoubleBuffered(g);

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                        int y = bounds.y;
                        if (clipBounds != null) {
                            bounds = bounds.intersection(clipBounds);
                        }
                        bounds.translate(-x, -y);
                        gComp.clipRect(bounds.x, bounds.y, bounds.width, bounds.height);
                        if (!gComp.getClipBounds().isEmpty()) {
                            comp.paint(gComp);
                        }
                        gComp.dispose();
                    }

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                    repaintRect.width, repaintRect.height, visibleRect);
            if (repaintRect.isEmpty()) {
                g.dispose();
                return;
            }
            g.clipRect(rect.x, rect.y, rect.width, rect.height);
        }
        if (RepaintManager.currentManager(this).isDoubleBufferingEnabled()
                && effectiveRoot instanceof JComponent
                && isDoubleBufferingEnabled(effectiveRoot)) {
            ((JComponent) effectiveRoot).paintDoubleBuffered(g);

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                        int y = bounds.y;
                        if (clipBounds != null) {
                            bounds = bounds.intersection(clipBounds);
                        }
                        bounds.translate(-x, -y);
                        gComp.clipRect(bounds.x, bounds.y, bounds.width, bounds.height);
                        if (!gComp.getClipBounds().isEmpty()) {
                            comp.paint(gComp);
                        }
                        gComp.dispose();
                    }

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                    repaintRect.width, repaintRect.height, visibleRect);
            if (repaintRect.isEmpty()) {
                g.dispose();
                return;
            }
            g.clipRect(rect.x, rect.y, rect.width, rect.height);
        }
        if (RepaintManager.currentManager(this).isDoubleBufferingEnabled()
                && effectiveRoot instanceof JComponent
                && isDoubleBufferingEnabled(effectiveRoot)) {
            ((JComponent) effectiveRoot).paintDoubleBuffered(g);

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