javax.swing.JTabbedPane#getTabPlacement ( )源码实例Demo

protected GradientPaint createContentGradient(JComponent c,
		boolean isSelected) {
	JTabbedPane tabs = getTabbedPaneParent(c);
	int placement = tabs == null ? SwingConstants.TOP : tabs
			.getTabPlacement();
	Color outer = isSelected ? contentOuterSelected
			: contentOuterNormal;
	Color inner = isSelected ? contentInnerSelected
			: contentInnerNormal;
	if (placement == SwingConstants.LEFT) {
		return (new GradientPaint(0, 0, outer, c.getWidth(), 0, inner));
	} else if (placement == SwingConstants.RIGHT) {
		return (new GradientPaint(0, 0, inner, c.getWidth(), 0, outer));
	} else if (placement == SwingConstants.BOTTOM) {
		return (new GradientPaint(0, 0, inner, 0, c.getHeight(), outer));
	} else {
		return (new GradientPaint(0, 0, outer, 0, c.getHeight(), inner));
	}
}
 

@Override
public void formatControlRow(JTabbedPane tabs, JPanel tabsContainer) {

	Border border;
	Paint paint = createBorderGradient(tabs.getTabPlacement());
	if (tabs.getTabPlacement() == SwingConstants.BOTTOM) {
		border = new PartialLineBorder(paint, true, true,
				tabs.getTabCount() == 0, true);
	} else if (tabs.getTabPlacement() == SwingConstants.LEFT) {
		border = new PartialLineBorder(paint, true,
				tabs.getTabCount() == 0, true, true);
	} else if (tabs.getTabPlacement() == SwingConstants.RIGHT) {
		border = new PartialLineBorder(paint, true, true, true,
				tabs.getTabCount() == 0);
	} else {
		border = new PartialLineBorder(paint, tabs.getTabCount() == 0,
				true, true, true);
	}

	tabsContainer.setUI(new GradientPanelUI(createContentGradient(tabs,
			false)));
	tabsContainer.setBorder(border);
}
 

@Override
public void formatTabContent(JTabbedPane tabs, JComponent c) {
	if (contentBorder) {
		Border border;
		if (tabs.getTabPlacement() == SwingConstants.LEFT) {
			border = new PartialLineBorder(borderNormalDark, true,
					false, true, true);
		} else if (tabs.getTabPlacement() == SwingConstants.BOTTOM) {
			border = new PartialLineBorder(borderNormalDark, true,
					true, false, true);
		} else if (tabs.getTabPlacement() == SwingConstants.RIGHT) {
			border = new PartialLineBorder(borderNormalDark, true,
					true, true, false);
		} else {
			border = new PartialLineBorder(borderNormalDark, false,
					true, true, true);
		}
		c.setBorder(border);
	}
}
 

/**
 * Updates the location of <code>this</code> tab overview button.
 *
 * @param tabbedPane
 *            Tabbed pane.
 * @param tabAreaInsets
 *            Tab area insets.
 */
public void updateLocation(JTabbedPane tabbedPane, Insets tabAreaInsets) {
    if (tabbedPane == null)
        return;

    // Lock the button for the bounds change
    this.putClientProperty(TabOverviewButton.OWN_BOUNDS, Boolean.TRUE);
    int buttonSize = SubstanceSizeUtils.getLookupButtonSize();

    switch (tabbedPane.getTabPlacement()) {
    case SwingConstants.TOP:
        if (tabbedPane.getComponentOrientation().isLeftToRight())
            this.setBounds(2, tabAreaInsets.top, buttonSize, buttonSize);
        else
            this.setBounds(tabbedPane.getBounds().width - tabAreaInsets.right - buttonSize - 2,
                    tabAreaInsets.top, buttonSize, buttonSize);
        break;
    case SwingConstants.BOTTOM:
        if (tabbedPane.getComponentOrientation().isLeftToRight())
            this.setBounds(2,
                    tabbedPane.getBounds().height - tabAreaInsets.bottom - buttonSize - 4,
                    buttonSize, buttonSize);
        else
            this.setBounds(tabbedPane.getBounds().width - tabAreaInsets.right - buttonSize - 2,
                    tabbedPane.getBounds().height - tabAreaInsets.bottom - buttonSize - 4,
                    buttonSize, buttonSize);
        break;
    case SwingConstants.LEFT:
        this.setBounds(2, tabAreaInsets.top - 1, buttonSize, buttonSize);
        break;
    case SwingConstants.RIGHT:
        this.setBounds(tabbedPane.getBounds().width - tabAreaInsets.right - buttonSize - 2,
                tabAreaInsets.top - 1, buttonSize, buttonSize);
        break;
    }
    // Unlock the button for the bounds change
    this.putClientProperty(TabOverviewButton.OWN_BOUNDS, null);
}
 

@Override
public void actionPerformed(ActionEvent e) {
	JTabbedPane pane = (JTabbedPane) e.getSource();
	CloseTabPaneUI ui = (CloseTabPaneUI) pane.getUI();
	int tabPlacement = pane.getTabPlacement();
	if (tabPlacement == TOP || tabPlacement == BOTTOM) {
		ui.navigateSelectedTab(WEST);
	}
	else {
		ui.navigateSelectedTab(NORTH);
	}
}
 

@Override
public void actionPerformed(ActionEvent e) {
	JTabbedPane pane = (JTabbedPane) e.getSource();
	CloseTabPaneUI ui = (CloseTabPaneUI) pane.getUI();
	int tabPlacement = pane.getTabPlacement();
	if (tabPlacement == TOP || tabPlacement == BOTTOM) {
		ui.navigateSelectedTab(EAST);
	}
	else {
		ui.navigateSelectedTab(SOUTH);
	}
}
 

/**
 * @see com.seaglasslookandfeel.painter.AbstractRegionPainter#doPaint(java.awt.Graphics2D,
 *      javax.swing.JComponent, int, int, java.lang.Object[])
 */
protected void doPaint(Graphics2D g, JComponent c, int width, int height, Object[] extendedCacheKeys) {
    JTabbedPane tabPane     = (JTabbedPane) c;
    int         orientation = tabPane.getTabPlacement();

    if (orientation == JTabbedPane.LEFT || orientation == JTabbedPane.RIGHT) {
        paintVerticalLine(g, c, 0, height / 2, width, height);
    } else {
        paintHorizontalLine(g, c, 0, height / 2, width, height);
    }
}