Examples of java.awt.Graphics2D.clip()

java.awt.Graphics2D.clip()
Intersects the current Clip with the interior of the specified Shape and sets the Clip to the resulting intersection. The specified Shape is transformed with the current Graphics2D Transform before being intersected with the current Clip. This method is used to make the current Clip smaller. To make the Clip larger, use setClip. The user clip modified by this method is independent of the clipping associated with device bounds and visibility. If no clip has previously been set, or if the clip has been cleared using {@link Graphics#setClip(Shape) setClip} with a nullargument, the specified Shape becomes the new user clip. @param s the Shape to be intersected with the currentClip. If s is null, this method clears the current Clip.

    harness.checkPoint("BufferedImage Graphics2D");
    BufferedImage image = new BufferedImage(100, 80, 
            BufferedImage.TYPE_INT_ARGB);
    Graphics2D g2 = image.createGraphics();
    harness.check(g2.getClip(), null);
    g2.clip(new Rectangle(1, 2, 3, 4));
    harness.check(g2.getClip(), new Rectangle(1, 2, 3, 4));
    g2.clip(new Rectangle(0, 1, 3, 2));
    harness.check(g2.getClip(), new Rectangle(1, 2, 2, 1));
    
    g2.setClip(null);

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            BufferedImage.TYPE_INT_ARGB);
    Graphics2D g2 = image.createGraphics();
    harness.check(g2.getClip(), null);
    g2.clip(new Rectangle(1, 2, 3, 4));
    harness.check(g2.getClip(), new Rectangle(1, 2, 3, 4));
    g2.clip(new Rectangle(0, 1, 3, 2));
    harness.check(g2.getClip(), new Rectangle(1, 2, 2, 1));
    
    g2.setClip(null);
    g2.translate(10, 20);
    g2.clip(new Rectangle(1, 2, 3, 4));

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    g2.clip(new Rectangle(0, 1, 3, 2));
    harness.check(g2.getClip(), new Rectangle(1, 2, 2, 1));
    
    g2.setClip(null);
    g2.translate(10, 20);
    g2.clip(new Rectangle(1, 2, 3, 4));
    harness.check(g2.getClip(), new Rectangle(1, 2, 3, 4));
    
    // try a null argument - the API specification says that this will clear
    // the clip, but in fact the reference implementation throws a 
    // NullPointerException - see the following entry in the bug parade:

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    // NullPointerException - see the following entry in the bug parade:
    // http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=6206189
    boolean pass = false;
    try
      {
        g2.clip(null);  
      }
    catch (NullPointerException e)
      {
        pass = true;
      }

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                    unselectedArea.add(new Area(new Rectangle(0, 0, width, height)));
                    unselectedArea.subtract(new Area(selection));


                    Graphics2D textGraphics = (Graphics2D)graphics.create();
                    textGraphics.setColor(color);
                    textGraphics.clip(unselectedArea);
                    textGraphics.drawGlyphVector(glyphVector, 0, ascent);
                    textGraphics.dispose();


                    // Paint the selection
                    Color selectionColor;

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                    }


                    Graphics2D selectedTextGraphics = (Graphics2D)graphics.create();
                    selectedTextGraphics.setColor(textArea.isFocused() &&
                        textArea.isEditable() ? selectionColor : inactiveSelectionColor);
                    selectedTextGraphics.clip(selection.getBounds());
                    selectedTextGraphics.drawGlyphVector(glyphVector, 0, ascent);
                    selectedTextGraphics.dispose();
                } else {
                    // Draw the text
                    graphics.setColor(color);

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                componentY += rowHeights[i] + verticalSpacing;
            }


            if (gridClip != null) {
                gridGraphics.clip(gridClip);
            }


            if (showHorizontalGridLines
                && verticalSpacing > 0
                && rowCount > 1) {

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                    unselectedArea.add(new Area(new Rectangle(0, 0, width, height)));
                    unselectedArea.subtract(new Area(selection));


                    Graphics2D textGraphics = (Graphics2D)graphics.create();
                    textGraphics.setColor(color);
                    textGraphics.clip(unselectedArea);
                    textGraphics.drawGlyphVector(glyphVector, padding.left - scrollLeft + 1,
                        (height - textHeight) / 2 + ascent);
                    textGraphics.dispose();


                    // Paint the selection

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                    graphics.setColor(selectionBackgroundColor);
                    graphics.fill(selection);


                    Graphics2D selectedTextGraphics = (Graphics2D)graphics.create();
                    selectedTextGraphics.setColor(selectionColor);
                    selectedTextGraphics.clip(selection.getBounds());
                    selectedTextGraphics.drawGlyphVector(glyphVector, padding.left - scrollLeft + 1,
                        (height - textHeight) / 2 + ascent);
                    selectedTextGraphics.dispose();
                }
            }

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        Graphics2D g2d = bi.createGraphics();
        if (hints != null)
            g2d.addRenderingHints(hints);
        g2d.setRenderingHint(RenderingHintsKeyExt.KEY_BUFFERED_IMAGE,
                             new WeakReference(bi));
        g2d.clip(new Rectangle(0, 0, bi.getWidth(), bi.getHeight()));
        return g2d;
    }




    public static Graphics2D createGraphics(BufferedImage bi) {

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