File	Doc	Category	Size	Date	Package
WindowsPopupMenuUI.java	API Doc	Java SE 6 API	7030	Tue Jun 10 00:21:58 BST 2008	com.sun.java.swing.plaf.windows

WindowsPopupMenuUI

• java.lang.Object
  • javax.swing.plaf.ComponentUI
    • javax.swing.plaf.PopupMenuUI
      • javax.swing.plaf.basic.BasicPopupMenuUI

Fields Summary
static MnemonicListener	mnemonicListener
static final Object	GUTTER_OFFSET_KEY

Constructors Summary

Methods Summary
public static javax.swing.plaf.ComponentUI	createUI(javax.swing.JComponent c) return new WindowsPopupMenuUI();
static int	getGutterWidth() Returns gutter width. used only on Vista. return width of the gutter int rv = 2; XPStyle xp = XPStyle.getXP(); if (xp != null) { Skin skin = xp.getSkin(null, Part.MP_POPUPGUTTER); rv = skin.getWidth(); } return rv;
public javax.swing.Popup	getPopup(javax.swing.JPopupMenu popupMenu, int x, int y) Returns the Popup that will be responsible for displaying the JPopupMenu. param popupMenu JPopupMenu requesting Popup param x Screen x location Popup is to be shown at param y Screen y location Popup is to be shown at. return Popup that will show the JPopupMenu since 1.4 PopupFactory popupFactory = PopupFactory.getSharedInstance(); return popupFactory.getPopup(popupMenu.getInvoker(), popupMenu, x, y);
static int	getSpanAfterGutter() Returns span after gutter. used only on Vista. return span after gutter return 3;
static int	getSpanBeforeGutter() Returns span before gutter. used only on Vista. return span before gutter return 3;
static int	getTextOffset(javax.swing.JComponent c) Returns offset for the text. BasicMenuItemUI sets max text offset on the JPopupMenuUI. param c PopupMenu to return text offset for. return text offset for the component int rv = -1; Object maxTextOffset = c.getClientProperty(BASICMENUITEMUI_MAX_TEXT_OFFSET); if (maxTextOffset instanceof Integer) { /* * this is in JMenuItem coordinates. * Let's assume all the JMenuItem have the same offset along X. */ rv = (Integer) maxTextOffset; int menuItemOffset = 0; Component component = c.getComponent(0); if (component != null) { menuItemOffset = component.getX(); } rv += menuItemOffset; } return rv;
public void	installListeners() super.installListeners(); if (! UIManager.getBoolean("Button.showMnemonics") && mnemonicListener == null) { mnemonicListener = new MnemonicListener(); MenuSelectionManager.defaultManager(). addChangeListener(mnemonicListener); }
private static boolean	isLeftToRight(javax.swing.JComponent c) Checks if PopupMenu is leftToRight The orientation is derived from the children of the component. It is leftToRight if all the children are leftToRight param c component to return orientation for return true if all the children are leftToRight boolean leftToRight = true; for (int i = c.getComponentCount() - 1; i >=0 && leftToRight; i-- ) { leftToRight = c.getComponent(i).getComponentOrientation().isLeftToRight(); } return leftToRight;
public void	paint(java.awt.Graphics g, javax.swing.JComponent c) if (WindowsMenuItemUI.isVistaPainting()) { XPStyle xp = XPStyle.getXP(); Skin skin = xp.getSkin(c, Part.MP_POPUPBACKGROUND); skin.paintSkin(g, 0, 0, c.getWidth(),c.getHeight(), State.NORMAL); int textOffset = getTextOffset(c); if (textOffset >= 0 /* paint gutter only for leftToRight case */ && isLeftToRight(c)) { skin = xp.getSkin(c, Part.MP_POPUPGUTTER); int gutterWidth = getGutterWidth(); int gutterOffset = textOffset - getSpanAfterGutter() - gutterWidth; c.putClientProperty(GUTTER_OFFSET_KEY, Integer.valueOf(gutterOffset)); Insets insets = c.getInsets(); skin.paintSkin(g, gutterOffset, insets.top, gutterWidth, c.getHeight() - insets.bottom - insets.top, State.NORMAL); } else { if (c.getClientProperty(GUTTER_OFFSET_KEY) != null) { c.putClientProperty(GUTTER_OFFSET_KEY, null); } } } else { super.paint(g, c); }