gtkstyle.java

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            !(component.getParent() instanceof JToolBar) &&
            ((JButton)component).isDefaultCapable())
        {
            // Include the default border insets, but only for JButtons
            // that are default capable.  Note that
            // JButton.getDefaultCapable() returns true by default, but
            // GtkToolButtons are never default capable, so we skip this
            // step if the button is contained in a toolbar.
            Insets defaultInsets = getClassSpecificInsetsValue(context,
                          "default-border", BUTTON_DEFAULT_BORDER_INSETS);
            insets.left += defaultInsets.left;
            insets.right += defaultInsets.right;
            insets.top += defaultInsets.top;
            insets.bottom += defaultInsets.bottom;
        }

        return insets;
    }

    /*
     * This is used for both RADIO_BUTTON and CHECK_BOX.
     */
    private Insets getRadioInsets(SynthContext context, Insets insets) {
        // The following calculations are derived from gtkcheckbutton.c
        // (GTK+ version 2.8.20), gtk_check_button_size_allocate() method.
        int focusSize =
            getClassSpecificIntValue(context, "focus-line-width", 1);
        int focusPad =
            getClassSpecificIntValue(context, "focus-padding", 1);
        int totalFocus = focusSize + focusPad;

        // Note: GTKIconFactory.DelegateIcon will have already included the
        // "indicator-spacing" value in the size of the indicator icon,
        // which explains why we use zero as the left inset (or right inset
        // in the RTL case); see 6489585 for more details.
        insets.top    = totalFocus;
        insets.bottom = totalFocus;
        if (context.getComponent().getComponentOrientation().isLeftToRight()) {
            insets.left  = 0;
            insets.right = totalFocus;
        } else {
            insets.left  = totalFocus;
            insets.right = 0;
        }

        return insets;
    }

    private Insets getMenuBarInsets(SynthContext context, Insets insets) {
        // The following calculations are derived from gtkmenubar.c
        // (GTK+ version 2.8.20), gtk_menu_bar_size_allocate() method.
        int internalPadding = getClassSpecificIntValue(context,
                                                       "internal-padding", 1);
        int xThickness = getXThickness();
        int yThickness = getYThickness();
        insets.left = insets.right = xThickness + internalPadding;
        insets.top = insets.bottom = yThickness + internalPadding;
        return insets;
    }

    private Insets getMenuItemInsets(SynthContext context, Insets insets) {
        // The following calculations are derived from gtkmenuitem.c
        // (GTK+ version 2.8.20), gtk_menu_item_size_allocate() method.
        int horizPadding = getClassSpecificIntValue(context,
                                                    "horizontal-padding", 3);
        int xThickness = getXThickness();
        int yThickness = getYThickness();
        insets.left = insets.right = xThickness + horizPadding;
        insets.top = insets.bottom = yThickness;
        return insets;
    }

    private Insets getThicknessInsets(SynthContext context, Insets insets) {
        insets.left = insets.right = getXThickness();
        insets.top = insets.bottom = getYThickness();
        return insets;
    }

    private Insets getSeparatorInsets(SynthContext context, Insets insets) {
        int horizPadding = 0;
        if (context.getRegion() == Region.POPUP_MENU_SEPARATOR) {
            horizPadding =
                getClassSpecificIntValue(context, "horizontal-padding", 3);
        }
        insets.right = insets.left = getXThickness() + horizPadding;
        insets.top = insets.bottom = getYThickness();
        return insets;
    }

    private Insets getSliderTrackInsets(SynthContext context, Insets insets) {
        int focusSize = getClassSpecificIntValue(context, "focus-line-width", 1);
        int focusPad = getClassSpecificIntValue(context, "focus-padding", 1);
        insets.top = insets.bottom =
                insets.left = insets.right = focusSize + focusPad;
        return insets;
    }

    private Insets getSimpleInsets(SynthContext context, Insets insets, int n) {
        insets.top = insets.bottom = insets.right = insets.left = n;
        return insets;
    }
    
    private Insets getTabbedPaneTabInsets(SynthContext context, Insets insets) {
        int xThickness = getXThickness();
        int yThickness = getYThickness();
        int focusSize = getClassSpecificIntValue(context, "focus-line-width",1);
        int pad = 2;
        
        insets.left = insets.right = focusSize + pad + xThickness;
        insets.top = insets.bottom = focusSize + pad + yThickness;
        return insets;
    }
    
    // NOTE: this is called for ComboBox, and FormattedTextField. too.
    private Insets getTextFieldInsets(SynthContext context, Insets insets) {
        int xThickness = getXThickness();
        int yThickness = getYThickness();
        boolean interiorFocus =
                getClassSpecificBoolValue(context, "interior-focus", true);
        int focusSize = 0;

        if (!interiorFocus) {
            focusSize = getClassSpecificIntValue(context, "focus-line-width",1);
        }
        
        insets.left = insets.right = focusSize + xThickness + 2;
        insets.top = insets.bottom = focusSize + yThickness + 2;
        return insets;
    }

    private Insets getScrollBarInsets(SynthContext context, Insets insets) {
        int inset = 0;
        if (context.getComponent().isFocusable()) {
            int focusSize =
                    getClassSpecificIntValue(context, "focus-line-width",1);
            int focusPad =
                    getClassSpecificIntValue(context, "focus-padding", 1);
            inset = focusSize + focusPad;
        }
        int troughBorder =
                getClassSpecificIntValue(context, "trough-border", 1);
        inset += troughBorder;
        insets.left = insets.right = insets.top = insets.bottom = inset;
        return insets;
    }

    /**
     * Returns the value for a class specific property for a particular
     * region.  This method is useful in those cases where we need to fetch
     * a value for a Region that is not associated with the component
     * currently in use (e.g. we need to figure out the size of a
     * SEPARATOR, but certain values can only be extracted from a
     * TOOL_BAR region).
     *
     * REMIND: This method can be safely removed once the fixes for
     * 6468814 and 6464868 are backported to a JDK 6 update release.
     *
     * @param r Region for which to fetch the value
     * @param key Key identifying class specific value
     * @return Value, or null if one has not been defined
     */
    private static Object getClassSpecificValueForRegion(Region r,
                                                         String key)
    {
        GTKStyleFactory factory = (GTKStyleFactory)
            GTKLookAndFeel.getStyleFactory(); 
        GTKStyle style = (GTKStyle)factory.getStyle(null, r);
        return style.getClassSpecificValue(r, key);
    }

    /**
     * Convenience method to get a class specific integer value for
     * a particular region.
     *
     * REMIND: This method can be safely removed once the fixes for
     * 6468814 and 6464868 are backported to a JDK 6 update release.
     *
     * @param r Region for which to fetch the value
     * @param key Key identifying class specific value
     * @param defaultValue Returned if there is no value for the specified
     *        type
     * @return Value, or defaultValue if <code>key</code> is not defined
     * @see #getClassSpecificValueForRegion
     */
    private static int getClassSpecificIntValueForRegion(Region r,
                                                         String key,
                                                         int defaultValue)
    {
        Object value = getClassSpecificValueForRegion(r, key);
        if (value instanceof Number) {
            return ((Number)value).intValue();
        }
        return defaultValue;
    }

    /**
     * Returns the value for a class specific property. A class specific value
     * is a value that will be picked up based on class hierarchy.
     *
     * @param context SynthContext indentifying requestor
     * @param key Key identifying class specific value
     * @return Value, or null if one has not been defined.
     */
    Object getClassSpecificValue(SynthContext context, String key) {
        return getClassSpecificValue(context.getRegion(), key);
    }


    /**
     * Convenience method to get a class specific integer value.
     *
     * @param context SynthContext indentifying requestor
     * @param key Key identifying class specific value
     * @param defaultValue Returned if there is no value for the specified
     *        type
     * @return Value, or defaultValue if <code>key</code> is not defined
     */
    public int getClassSpecificIntValue(SynthContext context, String key,
                                           int defaultValue) {
        Object value = getClassSpecificValue(context, key);

        if (value instanceof Number) {
            return ((Number)value).intValue();
        }
        return defaultValue;
    }

    /**
     * Convenience method to get a class specific Insets value.
     *
     * @param context SynthContext indentifying requestor
     * @param key Key identifying class specific value
     * @param defaultValue Returned if there is no value for the specified
     *        type
     * @return Value, or defaultValue if <code>key</code> is not defined
     */
    Insets getClassSpecificInsetsValue(SynthContext context, String key,
                                              Insets defaultValue) {
        Object value = getClassSpecificValue(context, key);

        if (value instanceof Insets) {
            return (Insets)value;
        }
        return defaultValue;
    }

    /**
     * Convenience method to get a class specific Boolean value.
     *
     * @param context SynthContext indentifying requestor
     * @param key Key identifying class specific value
     * @param defaultValue Returned if there is no value for the specified
     *        type
     * @return Value, or defaultValue if <code>key</code> is not defined
     */
    boolean getClassSpecificBoolValue(SynthContext context, String key,
                                             boolean defaultValue) {
        Object value = getClassSpecificValue(context, key);

        if (value instanceof Boolean) {
            return ((Boolean)value).booleanValue();
        }
        return defaultValue;
    }

    /**
     * Returns the value to initialize the opacity property of the Component
     * to. A Style should NOT assume the opacity will remain this value, the
     * developer may reset it or override it.
     *
     * @param context SynthContext indentifying requestor
     * @return opaque Whether or not the JComponent is opaque.
     */
    public boolean isOpaque(SynthContext context) {
        Region region = context.getRegion();
        if (region == Region.COMBO_BOX ||
              region == Region.DESKTOP_PANE ||
              region == Region.DESKTOP_ICON ||
              region == Region.EDITOR_PANE ||
              region == Region.FORMATTED_TEXT_FIELD ||
              region == Region.INTERNAL_FRAME ||
              region == Region.LIST ||
              region == Region.MENU_BAR ||
              region == Region.PANEL ||
              region == Region.PASSWORD_FIELD || 
              region == Region.POPUP_MENU ||
              region == Region.PROGRESS_BAR ||
              region == Region.ROOT_PANE ||
              region == Region.SCROLL_PANE ||
              region == Region.SPINNER ||
              region == Region.SPLIT_PANE_DIVIDER ||
              region == Region.TABLE ||
              region == Region.TEXT_AREA ||
              region == Region.TEXT_FIELD ||
              region == Region.TEXT_PANE ||
              region == Region.TOOL_BAR_DRAG_WINDOW ||
              region == Region.TOOL_TIP ||
              region == Region.TREE ||
              region == Region.VIEWPORT) {
            return true;
        }
        Component c = context.getComponent();
        String name = c.getName();
        if (name == "ComboBox.renderer" || name == "ComboBox.listRenderer") {
            return true;
        }
        return false;
    }
    
    public Object get(SynthContext context, Object key) {
        // See if this is a class specific value.
        String classKey = CLASS_SPECIFIC_MAP.get(key);
        if (classKey != null) {
            Object value = getClassSpecificValue(context, classKey);
            if (value != null) {
                return value;
            }
        }
        
        // Is it a specific value ?
        if (key == "ScrollPane.viewportBorderInsets") {
            return getThicknessInsets(context, new Insets(0, 0, 0, 0));
        }
        else if (key == "Slider.tickColor") {
            return getColorForState(context, ColorType.FOREGROUND);
        }
        else if (key == "Separator.thickness") {
            JSeparator sep = (JSeparator)context.getComponent();
            if (sep.getOrientation() == JSeparator.HORIZONTAL) {
                return getYThickness();
            } else {
                return getXThickness();
            }
        }
        else if (key == "ToolBar.separatorSize") {
            int size = getClassSpecificIntValueForRegion(Region.TOOL_BAR,
                                                         "space-size", 12);
            return new DimensionUIResource(size, size);
        }
        else if ("CheckBox.iconTextGap".equals(key) ||
                 "RadioButton.iconTextGap".equals(key))
        {
            // The iconTextGap value needs to include "indicator-spacing"
            // and it also needs to leave enough space for the focus line,
            // which falls between the indicator icon and the text.
            // See getRadioInsets() and 6489585 for more details.
            int indicatorSpacing =
                getClassSpecificIntValue(context, "indicator-spacing", 2);
            int focusSize =
                getClassSpecificIntValue(context, "focus-line-width", 1);
            int focusPad =
                getClassSpecificIntValue(context, "focus-padding", 1);
            return indicatorSpacing + focusSize + focusPad;
        }

        // Is it a stock icon ?
        GTKStockIcon stockIcon = null;
        synchronized (ICONS_MAP) {
            stockIcon = ICONS_MAP.get(key);
        }