/** * Sets the receiver's tool tip text to the argument, which may be null indicating that the * default tool tip for the control will be shown. For a menu item that has a default tool tip, * setting the tool tip text to an empty string replaces the default, causing no tool tip text to * be shown. * * <p>The mnemonic indicator (character '&') is not displayed in a tool tip. To display a * single '&' in the tool tip, the character '&' can be escaped by doubling it in the * string. * * <p>NOTE: Tooltips are currently not shown for top-level menu items in the {@link * Shell#setMenuBar(Menu) shell menubar} on Windows, Mac, and Ubuntu Unity desktop. * * @param toolTip the new tool tip text (or null) * @exception SWTException * <ul> * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver * </ul> * * @since 3.104 */ public void setToolTipText(String toolTip) { checkWidget(); if (toolTip == null && itemToolTip != null) { itemToolTip.setVisible(false); itemToolTip = null; } if (toolTip == null || toolTip.trim().length() == 0 || (itemToolTip != null && toolTip.equals(itemToolTip.getMessage()))) return; itemToolTip = new MenuItemToolTip(this.getParent().getShell()); itemToolTip.setMessage(toolTip); itemToolTip.setVisible(false); }
void hideToolTip() { if (itemToolTip == null) return; itemToolTip.setVisible(false); }
/** * Returns the receiver's tool tip text, or null if it has not been set. * * @return the receiver's tool tip text * @exception SWTException * <ul> * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver * </ul> * * @since 3.104 */ public String getToolTipText() { checkWidget(); return (itemToolTip == null) ? null : itemToolTip.getMessage(); }
void showTooltip(int x, int y) { if (itemToolTip == null) return; itemToolTip.setLocation(x, y); itemToolTip.setVisible(true); }