region.java

Mobile 应用程序使用 Java Micro Edition (Java ME) 平台

     * Thumb of the ScrollBar. The thumb is the region of the ScrollBar 
     * that gives a graphical depiction of what percentage of the View is 
     * currently visible. To bind a style to this <code>Region</code> use 
     * the name <code>ScrollBarThumb</code>.
     */
    public static final Region SCROLL_BAR_THUMB = new Region("ScrollBarThumb");

    /**
     * ScrollPane region. To bind a style to this <code>Region</code> use 
     * the name <code>ScrollPane</code>.
     */
    public static final Region SCROLL_PANE = new Region("ScrollPane",
                                                        "ScrollPaneUI");

    /**
     * Separator region. To bind a style to this <code>Region</code> use 
     * the name <code>Separator</code>. 
     */
    public static final Region SEPARATOR = new Region("Separator",
                                                      "SeparatorUI");

    /**
     * Slider region. To bind a style to this <code>Region</code> use 
     * the name <code>Slider</code>.
     */
    public static final Region SLIDER = new Region("Slider", "SliderUI");
    /**
     * Track of the Slider. To bind a style to this <code>Region</code> use 
     * the name <code>SliderTrack</code>.
     */
    public static final Region SLIDER_TRACK = new Region("SliderTrack");
    /**
     * Thumb of the Slider. The thumb of the Slider identifies the current 
     * value. To bind a style to this <code>Region</code> use the name 
     * <code>SliderThumb</code>.
     */
    public static final Region SLIDER_THUMB = new Region("SliderThumb");

    /**
     * Spinner region. To bind a style to this <code>Region</code> use the name
     * <code>Spinner</code>.
     */
    public static final Region SPINNER = new Region("Spinner", "SpinnerUI");

    /**
     * SplitPane region. To bind a style to this <code>Region</code> use the name
     * <code>SplitPane</code>.
     */
    public static final Region SPLIT_PANE = new Region("SplitPane",
                                                      "SplitPaneUI");

    /**
     * Divider of the SplitPane. To bind a style to this <code>Region</code> 
     * use the name <code>SplitPaneDivider</code>.
     */
    public static final Region SPLIT_PANE_DIVIDER = new Region(
                                        "SplitPaneDivider");

    /**
     * TabbedPane region. To bind a style to this <code>Region</code> use 
     * the name <code>TabbedPane</code>.
     */
    public static final Region TABBED_PANE = new Region("TabbedPane",
                                                        "TabbedPaneUI");
    /**
     * Region of a TabbedPane for one tab. To bind a style to this 
     * <code>Region</code> use the name <code>TabbedPaneTab</code>.
     */
    public static final Region TABBED_PANE_TAB = new Region("TabbedPaneTab");
    /**
     * Region of a TabbedPane containing the tabs. To bind a style to this 
     * <code>Region</code> use the name <code>TabbedPaneTabArea</code>.
     */
    public static final Region TABBED_PANE_TAB_AREA =
                                 new Region("TabbedPaneTabArea");
    /**
     * Region of a TabbedPane containing the content. To bind a style to this 
     * <code>Region</code> use the name <code>TabbedPaneContent</code>.
     */
    public static final Region TABBED_PANE_CONTENT =
                                 new Region("TabbedPaneContent");

    /**
     * Table region. To bind a style to this <code>Region</code> use 
     * the name <code>Table</code>.
     */
    public static final Region TABLE = new Region("Table", "TableUI");

    /**
     * TableHeader region. To bind a style to this <code>Region</code> use 
     * the name <code>TableHeader</code>.
     */
    public static final Region TABLE_HEADER = new Region("TableHeader",
                                                         "TableHeaderUI");
    /**
     * TextArea region. To bind a style to this <code>Region</code> use 
     * the name <code>TextArea</code>.
     */
    public static final Region TEXT_AREA = new Region("TextArea",
                                                      "TextAreaUI");

    /**
     * TextField region. To bind a style to this <code>Region</code> use 
     * the name <code>TextField</code>.
     */
    public static final Region TEXT_FIELD = new Region("TextField",
                                                       "TextFieldUI");

    /**
     * TextPane region. To bind a style to this <code>Region</code> use 
     * the name <code>TextPane</code>.
     */
    public static final Region TEXT_PANE = new Region("TextPane",
                                                      "TextPaneUI");

    /**
     * ToggleButton region. To bind a style to this <code>Region</code> use 
     * the name <code>ToggleButton</code>.
     */
    public static final Region TOGGLE_BUTTON = new Region("ToggleButton",
                                                          "ToggleButtonUI");

    /**
     * ToolBar region. To bind a style to this <code>Region</code> use 
     * the name <code>ToolBar</code>.
     */
    public static final Region TOOL_BAR = new Region("ToolBar", "ToolBarUI");
    /**
     * Region of the ToolBar containing the content. To bind a style to this 
     * <code>Region</code> use the name <code>ToolBarContent</code>.
     */
    public static final Region TOOL_BAR_CONTENT = new Region("ToolBarContent");
    /**
     * Region for the Window containing the ToolBar. To bind a style to this 
     * <code>Region</code> use the name <code>ToolBarDragWindow</code>.
     */
    public static final Region TOOL_BAR_DRAG_WINDOW = new Region(
                                        "ToolBarDragWindow", null, false);

    /**
     * ToolTip region. To bind a style to this <code>Region</code> use 
     * the name <code>ToolTip</code>.
     */
    public static final Region TOOL_TIP = new Region("ToolTip", "ToolTipUI");

    /**
     * ToolBar separator region. To bind a style to this <code>Region</code> use 
     * the name <code>ToolBarSeparator</code>.
     */
    public static final Region TOOL_BAR_SEPARATOR = new Region(
                          "ToolBarSeparator", "ToolBarSeparatorUI");

    /**
     * Tree region. To bind a style to this <code>Region</code> use the name 
     * <code>Tree</code>.
     */
    public static final Region TREE = new Region("Tree", "TreeUI");
    /**
     * Region of the Tree for one cell. To bind a style to this 
     * <code>Region</code> use the name <code>TreeCell</code>.
     */
    public static final Region TREE_CELL = new Region("TreeCell");

    /**
     * Viewport region. To bind a style to this <code>Region</code> use 
     * the name <code>Viewport</code>.
     */
    public static final Region VIEWPORT = new Region("Viewport", "ViewportUI");


    private String name;
    private boolean subregion;


    static Region getRegion(JComponent c) {
        return (Region)uiToRegionMap.get(c.getUIClassID());
    }

    static void registerUIs(UIDefaults table) {
        for (Object key : uiToRegionMap.keySet()) {
            table.put(key, "javax.swing.plaf.synth.SynthLookAndFeel");
        }
    }


    Region(String name) {
        this(name, null, true);
    }

    Region(String name, String ui) {
        this(name, ui, false);
    }

    /**
     * Creates a Region with the specified name. This should only be
     * used if you are creating your own <code>JComponent</code> subclass
     * with a custom <code>ComponentUI</code> class.
     *
     * @param name Name of the region
     * @param ui String that will be returned from
     *           <code>component.getUIClassID</code>. This will be null
     *           if this is a subregion.
     * @param subregion Whether or not this is a subregion.
     */
    protected Region(String name, String ui, boolean subregion) {
        if (name == null) {
            throw new NullPointerException("You must specify a non-null name");
        }
        this.name = name;
        if (ui != null) {
            uiToRegionMap.put(ui, this);
        }
        this.subregion = subregion;
    }

    /**
     * Returns true if the Region is a subregion of a Component, otherwise
     * false. For example, <code>Region.BUTTON</code> corresponds do a
     * <code>Component</code> so that <code>Region.BUTTON.isSubregion()</code>
     * returns false.
     *
     * @return true if the Region is a subregion of a Component.
     */
    public boolean isSubregion() {
        return subregion;
    }

    /**
     * Returns the name of the region.
     *
     * @return name of the Region.
     */
    public String getName() {
        return name;
    }

    /**
     * Returns the name, in lowercase.
     */
    String getLowerCaseName() {
        synchronized(lowerCaseNameMap) {
            String lowerCaseName = (String)lowerCaseNameMap.get(this);
            if (lowerCaseName == null) {
                lowerCaseName = getName().toLowerCase();
                lowerCaseNameMap.put(this, lowerCaseName);
            }
            return lowerCaseName;
        }
    }

    /**
     * Returns the name of the Region.
     *
     * @return name of the Region.
     */
    public String toString() {
        return name;
    }
}