basicborders.java

java jdk 1.4的源码

	        } else {
		    BasicGraphicsUtils.drawBezel(g, x, y, width, height, 
					       false, b.isFocusPainted() && b.hasFocus(),
                                                 shadow, darkShadow, 
                                                 highlight, lightHighlight);
	        }
	    } else {	
	        BasicGraphicsUtils.drawBezel(g, x, y, width, height, false, false,
                                             shadow, darkShadow, highlight, lightHighlight);
	    }
        }
      
        public Insets getBorderInsets(Component c)       {
	    return getBorderInsets(c, new Insets(0,0,0,0));
        }

        public Insets getBorderInsets(Component c, Insets insets)       {
            insets.top = insets.left = insets.bottom = insets.right = 2;
	    return insets;
        }
    }

    public static class MenuBarBorder extends AbstractBorder implements UIResource {
        private Color shadow;
        private Color highlight;

        public MenuBarBorder(Color shadow, Color highlight) {
            this.shadow = shadow;
            this.highlight = highlight;
        }

	public void paintBorder(Component c, Graphics g, int x, int y, int width, int height) {
	    BasicGraphicsUtils.drawGroove(g, 0, height-2, 
					  width, height,
                                          shadow, highlight);
	}
	
	public Insets getBorderInsets(Component c)       {
	    return getBorderInsets(c, new Insets(0,0,0,0));
	}

        public Insets getBorderInsets(Component c, Insets insets)       {
            insets.top = 0;
	    insets.left = 0;
	    insets.bottom = 2;
	    insets.right = 0;
	    return insets;
        }
    }

    public static class MarginBorder extends AbstractBorder implements UIResource {

        public Insets getBorderInsets(Component c)       {
	    return getBorderInsets(c, new Insets(0,0,0,0));
        }

        public Insets getBorderInsets(Component c, Insets insets)       {
            Insets margin = null;
            //
            // Ideally we'd have an interface defined for classes which
            // support margins (to avoid this hackery), but we've
            // decided against it for simplicity
            //
           if (c instanceof AbstractButton) {
               AbstractButton b = (AbstractButton)c;
               margin = b.getMargin();
           } else if (c instanceof JToolBar) {
               JToolBar t = (JToolBar)c;
               margin = t.getMargin();
           } else if (c instanceof JTextComponent) {
               JTextComponent t = (JTextComponent)c;
               margin = t.getMargin();
           }
	   insets.top = margin != null? margin.top : 0;
	   insets.left = margin != null? margin.left : 0;
	   insets.bottom = margin != null? margin.bottom : 0;
	   insets.right = margin != null? margin.right : 0;
	       
	   return insets;
        }
    }

    public static class FieldBorder extends AbstractBorder implements UIResource {
        protected Color shadow;
        protected Color darkShadow;
        protected Color highlight;
        protected Color lightHighlight;

        public FieldBorder(Color shadow, Color darkShadow, 
                           Color highlight, Color lightHighlight) {
            this.shadow = shadow;
            this.highlight = highlight;
            this.darkShadow = darkShadow;
            this.lightHighlight = lightHighlight;
        }

        public void paintBorder(Component c, Graphics g, int x, int y, 
                            int width, int height) {
            BasicGraphicsUtils.drawEtchedRect(g, x, y, width, height,
                                              shadow, darkShadow, 
                                              highlight, lightHighlight);
        }

        public Insets getBorderInsets(Component c) {
	    return getBorderInsets(c, new Insets(0,0,0,0));
	}

	public Insets getBorderInsets(Component c, Insets insets) {
            Insets margin = null;
            if (c instanceof JTextComponent) {
                margin = ((JTextComponent)c).getMargin();
            }
	    insets.top = margin != null? 2+margin.top : 2;
	    insets.left = margin != null? 2+margin.left : 2;
	    insets.bottom = margin != null? 2+margin.bottom : 2;
	    insets.right = margin != null? 2+margin.right : 2;
	       
	    return insets;
        }
    }


    /**
     * Draws the border around the divider in a splitpane
     * (when BasicSplitPaneUI is used). To get the appropriate effect, this
     * needs to be used with a SplitPaneBorder.
     */
    static class SplitPaneDividerBorder implements Border, UIResource {
        Color highlight;
        Color shadow;

        SplitPaneDividerBorder(Color highlight, Color shadow) {
	    this.highlight = highlight;
	    this.shadow = shadow;
	}

	public void paintBorder(Component c, Graphics g, int x, int y,
				int width, int height) {
	    Component          child;
	    Rectangle          cBounds;
	    JSplitPane         splitPane = ((BasicSplitPaneDivider)c).
		                         getBasicSplitPaneUI().getSplitPane();
	    Dimension          size = c.getSize();
	    
	    child = splitPane.getLeftComponent();
	    // This is needed for the space between the divider and end of
	    // splitpane.
	    g.setColor(c.getBackground());
	    g.drawRect(x, y, width - 1, height - 1);
	    if(splitPane.getOrientation() == JSplitPane.HORIZONTAL_SPLIT) {
		if(child != null) {
		    g.setColor(highlight);
		    g.drawLine(0, 0, 0, size.height);
		}
		child = splitPane.getRightComponent();
		if(child != null) {
		    g.setColor(shadow);
		    g.drawLine(size.width - 1, 0, size.width - 1, size.height);
		}
	    } else {
		if(child != null) {
		    g.setColor(highlight);
		    g.drawLine(0, 0, size.width, 0);
		}
		child = splitPane.getRightComponent();
		if(child != null) {
		    g.setColor(shadow);
		    g.drawLine(0, size.height - 1, size.width,
			       size.height - 1);
		}
	    }
	}
	public Insets getBorderInsets(Component c) {
	    Insets insets = new Insets(0,0,0,0);
	    if (c instanceof BasicSplitPaneDivider) {
		BasicSplitPaneUI bspui = ((BasicSplitPaneDivider)c).
		                         getBasicSplitPaneUI();

		if (bspui != null) {
		    JSplitPane splitPane = bspui.getSplitPane();

		    if (splitPane != null) {
			if (splitPane.getOrientation() ==
			    JSplitPane.HORIZONTAL_SPLIT) {
			    insets.top = insets.bottom = 0;
			    insets.left = insets.right = 1;
			    return insets;
			}
			// VERTICAL_SPLIT
			insets.top = insets.bottom = 1;
			insets.left = insets.right = 0;
			return insets;
		    }
		}
	    }
	    insets.top = insets.bottom = insets.left = insets.right = 1;
	    return insets;
	}
	public boolean isBorderOpaque() { return true; }
    }


    /**
     * Draws the border around the splitpane. To work correctly you shoudl
     * also install a border on the divider (property SplitPaneDivider.border).
     */
    public static class SplitPaneBorder implements Border, UIResource {
        protected Color highlight;
        protected Color shadow;

        public SplitPaneBorder(Color highlight, Color shadow) {
	    this.highlight = highlight;
	    this.shadow = shadow;
	}

	public void paintBorder(Component c, Graphics g, int x, int y,
				int width, int height) {
	    // The only tricky part with this border is that the divider is
	    // not positioned at the top (for horizontal) or left (for vert),
	    // so this border draws to where the divider is:
	    // -----------------
	    // |xxxxxxx xxxxxxx|
	    // |x     ---     x|
	    // |x     |	|     x|
	    // |x     |D|     x|
	    // |x     | |     x|
	    // |x     ---     x|
	    // |xxxxxxx xxxxxxx|
	    // -----------------
	    // The above shows (rather excessively) what this looks like for
	    // a horizontal orientation. This border then draws the x's, with
	    // the SplitPaneDividerBorder drawing its own border.

	    Component          child;
	    Rectangle          cBounds;

	    JSplitPane splitPane = (JSplitPane)c;
	    
	    child = splitPane.getLeftComponent();
	    // This is needed for the space between the divider and end of
	    // splitpane.
	    g.setColor(c.getBackground());
	    g.drawRect(x, y, width - 1, height - 1);
	    if(splitPane.getOrientation() == JSplitPane.HORIZONTAL_SPLIT) {
		if(child != null) {
		    cBounds = child.getBounds();
		    g.setColor(shadow);
		    g.drawLine(0, 0, cBounds.width + 1, 0);
		    g.drawLine(0, 1, 0, cBounds.height + 2);

		    g.setColor(highlight);
		    g.drawLine(1, cBounds.height + 1, cBounds.width + 1,
			       cBounds.height + 1);
		}
		child = splitPane.getRightComponent();
		if(child != null) {
		    cBounds = child.getBounds();

		    int             maxX = cBounds.x + cBounds.width;
		    int             maxY = cBounds.y + cBounds.height;
		    
		    g.setColor(shadow);
		    g.drawLine(cBounds.x - 1, 0, maxX, 0);
		    g.drawLine(cBounds.x - 1, maxY, cBounds.x, maxY);
		    g.setColor(highlight);
		    g.drawLine(cBounds.x, maxY, maxX, maxY);
		    g.drawLine(maxX, 0, maxX, maxY + 1);
		}
	    } else {
		if(child != null) {
		    cBounds = child.getBounds();
		    g.setColor(shadow);
		    g.drawLine(0, 0, cBounds.width + 1, 0);
		    g.drawLine(0, 1, 0, cBounds.height);
		    g.setColor(highlight);
		    g.drawLine(1 + cBounds.width, 0, 1 + cBounds.width,
			       cBounds.height + 1);
		    g.drawLine(0, cBounds.height + 1, 0, cBounds.height + 1);
		}
		child = splitPane.getRightComponent();
		if(child != null) {
		    cBounds = child.getBounds();

		    int             maxX = cBounds.x + cBounds.width;
		    int             maxY = cBounds.y + cBounds.height;
		    
		    g.setColor(shadow);
		    g.drawLine(0, cBounds.y - 1, 0, maxY);
		    g.drawLine(maxX, cBounds.y - 1, maxX, cBounds.y - 1);
		    g.drawLine(0, cBounds.y - 1, cBounds.width, cBounds.y - 1);
		    g.setColor(highlight);
		    g.drawLine(0, maxY, cBounds.width + 1, maxY);
		    g.drawLine(maxX, cBounds.y, maxX, maxY);
		}
	    }
	}
	public Insets getBorderInsets(Component c) {
	    return new Insets(1, 1, 1, 1);
	}
	public boolean isBorderOpaque() { return true; }
    }
    
}