metaltabbedpaneui.java

来自「java jdk 1.4的源码」· Java 代码 · 共 978 行 · 第 1/3 页

        //
        // Paint Border
        //

        g.setColor( darkShadow );

        // Paint slant
        g.drawLine( 1, 5, 6, 0 );

        // Paint top
        g.drawLine( 6, 0, right, 0 );

        // Paint left
        if ( tabIndex != firstIndex ) {
            g.drawLine( 0, 0, 0, bottom );
        } else {
            g.drawLine( 0, 6, 0, bottom );
        }

        // Paint bottom
        if ( tabIndex == lastIndex ) {
            g.drawLine( 0, bottom, right, bottom );
        }

        g.translate( -x, -y );
    }


    protected void paintBottomTabBorder( int tabIndex, Graphics g, 
                                         int x, int y, int w, int h,
                                         int btm, int rght,
                                         boolean isSelected ) {
        int tabCount = tabPane.getTabCount();
        int currentRun = getRunForTab( tabCount, tabIndex );
        int lastIndex = lastTabInRun( tabCount, currentRun );
        int firstIndex = tabRuns[ currentRun ];
	boolean leftToRight = MetalUtils.isLeftToRight(tabPane);

        int bottom = h - 1;
        int right = w - 1;

        //
        // Paint Gap
        //

        if ( shouldFillGap( currentRun, tabIndex, x, y ) ) {
            g.translate( x, y );

	    if ( leftToRight ) {
	        g.setColor( getColorForGap( currentRun, x, y ) );
		g.fillRect( 1, bottom - 4, 3, 5 );
		g.fillRect( 4, bottom - 1, 2, 2 );
	    } else {
	        g.setColor( getColorForGap( currentRun, x + w - 1, y ) );
		g.fillRect( right - 3, bottom - 3, 3, 4 );
		g.fillRect( right - 5, bottom - 1, 2, 2 );
		g.drawLine( right - 1, bottom - 4, right - 1, bottom - 4 );
	    }

            g.translate( -x, -y );
        }

        g.translate( x, y );


        //
        // Paint Border
        //

        g.setColor( darkShadow );

	if ( leftToRight ) {

	    // Paint slant
	    g.drawLine( 1, bottom - 5, 6, bottom );

	    // Paint bottom
	    g.drawLine( 6, bottom, right, bottom );

	    // Paint right
	    if ( tabIndex == lastIndex ) {
	        g.drawLine( right, 0, right, bottom );
	    }

	    // Paint left
	    if ( tabIndex != tabRuns[ runCount - 1 ] ) {
	        g.drawLine( 0, 0, 0, bottom );
	    } else {
	        g.drawLine( 0, 0, 0, bottom - 6 );
	    }
	} else {

	    // Paint slant
	    g.drawLine( right - 1, bottom - 5, right - 6, bottom );

	    // Paint bottom
	    g.drawLine( right - 6, bottom, 0, bottom );

	    // Paint right
	    if ( tabIndex != tabRuns[ runCount - 1 ] ) {
	        // not the first tab in the last run
	        g.drawLine( right, 0, right, bottom );
	    } else {
	        // the first tab in the last run
	        g.drawLine( right, 0, right, bottom - 6 );
	    }

	    // Paint left
	    if ( tabIndex==lastIndex ) {
	        // last tab in run
	        g.drawLine( 0, 0, 0, bottom );
	    }
	}

        //
        // Paint Highlight
        //

        g.setColor( isSelected ? selectHighlight : highlight );

	if ( leftToRight ) {

	    // Paint slant
	    g.drawLine( 1, bottom - 6, 6, bottom - 1 );

	    // Paint left
	    g.drawLine( 1, 0, 1, bottom - 6 );

	    // paint highlight in the gap on tab behind this one
	    // on the left end (where they all line up)
	    if ( tabIndex==firstIndex && tabIndex!=tabRuns[runCount - 1] ) {
	        //  first tab in run but not first tab in last run
	        if (tabPane.getSelectedIndex()==tabRuns[currentRun+1]) {
		    // tab in front of selected tab
		    g.setColor( selectHighlight );
		}
		else {
		    // tab in front of normal tab
		    g.setColor( highlight );
		}
		g.drawLine( 1, bottom - 4, 1, bottom );
	    }
	} else {

	    // Paint left
	    if ( tabIndex==lastIndex ) {
	        // last tab in run
	        g.drawLine( 1, 0, 1, bottom - 1 );
	    } else {
	        g.drawLine( 0, 0, 0, bottom - 1 );
	    }
	}

        g.translate( -x, -y );
    }

    protected void paintRightTabBorder( int tabIndex, Graphics g, 
                                        int x, int y, int w, int h,
                                        int btm, int rght,
                                        boolean isSelected ) {
        int tabCount = tabPane.getTabCount();
        int currentRun = getRunForTab( tabCount, tabIndex );
        int lastIndex = lastTabInRun( tabCount, currentRun );
        int firstIndex = tabRuns[ currentRun ];

        g.translate( x, y );

        int bottom = h - 1;
        int right = w - 1;

        //
        // Paint part of the tab above
        //

        if ( tabIndex != firstIndex ) {
            g.setColor( tabPane.getSelectedIndex() == tabIndex - 1 ?
                        tabAreaBackground :
                        tabPane.getBackgroundAt( tabIndex - 1 ) );
            g.fillRect( right - 5, 0, 5, 3 );
            g.fillRect( right - 2, 3, 2, 2 );
        }


        //
        // Paint Highlight
        //

        g.setColor( isSelected ? selectHighlight : highlight );

        // Paint slant
        g.drawLine( right - 6, 1, right - 1, 6 );

        // Paint top
        g.drawLine( 0, 1, right - 6, 1 );

        // Paint left
	if ( !isSelected ) {
	    g.drawLine( 0, 1, 0, bottom );
	}


        //
        // Paint Border
        //

        g.setColor( darkShadow );

        // Paint slant
        g.drawLine( right - 6, 0, right, 6 );

        // Paint top
        g.drawLine( 0, 0, right - 6, 0 );

        // Paint right
        if ( tabIndex != firstIndex ) {
            g.drawLine( right, 0, right, bottom );
        } else {
            g.drawLine( right, 6, right, bottom );
        }

        // Paint bottom
        if ( tabIndex == lastIndex ) {
            g.drawLine( 0, bottom, right, bottom );
        }

        g.translate( -x, -y );
    }

    public void update( Graphics g, JComponent c ) {
	if ( c.isOpaque() ) {
	    g.setColor( tabAreaBackground );
	    g.fillRect( 0, 0, c.getWidth(),c.getHeight() );
	}
	paint( g, c );
    }

    protected void paintTabBackground( Graphics g, int tabPlacement,
                                       int tabIndex, int x, int y, int w, int h, boolean isSelected ) {
        int slantWidth = h / 2;
        if ( isSelected ) {
            g.setColor( selectColor );
        } else {
            g.setColor( tabPane.getBackgroundAt( tabIndex ) );
        }

	if (MetalUtils.isLeftToRight(tabPane)) {
	    switch ( tabPlacement ) {
                case LEFT:
		    g.fillRect( x + 5, y + 1, w - 5, h - 1);
		    g.fillRect( x + 2, y + 4, 3, h - 4 );
		    break;
                case BOTTOM:
		    g.fillRect( x + 2, y, w - 2, h - 4 );
		    g.fillRect( x + 5, y + (h - 1) - 3, w - 5, 3 );
		    break;
                case RIGHT:
		    g.fillRect( x + 1, y + 1, w - 5, h - 1);
		    g.fillRect( x + (w - 1) - 3, y + 5, 3, h - 5 );
		    break;
                case TOP:
                default:
		    g.fillRect( x + 4, y + 2, (w - 1) - 3, (h - 1) - 1 );
		    g.fillRect( x + 2, y + 5, 2, h - 5 );
	    }
	} else {
	    switch ( tabPlacement ) {
                case LEFT:
		    g.fillRect( x + 5, y + 1, w - 5, h - 1);
		    g.fillRect( x + 2, y + 4, 3, h - 4 );
		    break;
                case BOTTOM:
		    g.fillRect( x, y, w - 5, h - 1 );
		    g.fillRect( x + (w - 1) - 4, y, 4, h - 5);
		    g.fillRect( x + (w - 1) - 4, y + (h - 1) - 4, 2, 2);
		    break;
                case RIGHT:
		    g.fillRect( x + 1, y + 1, w - 5, h - 1);
		    g.fillRect( x + (w - 1) - 3, y + 5, 3, h - 5 );
		    break;
                case TOP:
                default:
		    g.fillRect( x, y + 2, (w - 1) - 3, (h - 1) - 1 );
		    g.fillRect( x + (w - 1) - 3, y + 4, 3, h - 4 );
	    }
	}
    }

    /**
     * Overridden to do nothing for the Java L&F.
     */
    protected int getTabLabelShiftX( int tabPlacement, int tabIndex, boolean isSelected ) {
        return 0; 
    }


    /**
     * Overridden to do nothing for the Java L&F.
     */
    protected int getTabLabelShiftY( int tabPlacement, int tabIndex, boolean isSelected ) {
        return 0; 
    }


    public void paint( Graphics g, JComponent c ) {
        int tabPlacement = tabPane.getTabPlacement();

        Insets insets = c.getInsets(); Dimension size = c.getSize();

        // Paint the background for the tab area
        if ( tabPane.isOpaque() ) {
            g.setColor( c.getBackground() );
            switch ( tabPlacement ) {
            case LEFT:
                g.fillRect( insets.left, insets.top, 
                            calculateTabAreaWidth( tabPlacement, runCount, maxTabWidth ),
                            size.height - insets.bottom - insets.top );
                break;
            case BOTTOM:
                int totalTabHeight = calculateTabAreaHeight( tabPlacement, runCount, maxTabHeight );
                g.fillRect( insets.left, size.height - insets.bottom - totalTabHeight, 
                            size.width - insets.left - insets.right,
                            totalTabHeight );
                break;
            case RIGHT:
                int totalTabWidth = calculateTabAreaWidth( tabPlacement, runCount, maxTabWidth );