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GTKNativeEngine.javaAPI DocJava SE 6 API24602Tue Jun 10 00:21:56 BST 2008com.sun.java.swing.plaf.gtk

GTKNativeEngine

public class GTKNativeEngine extends GTKEngine
GTKNativeEngine delegates all painting job to native GTK libraries. Painting with GTKNativeEngine looks like this: First, startPainting() is called. It prepares an offscreen buffer of the required size. Then, any number of paintXXX() methods can be called. They effectively ignore the Graphics parameter and draw to the offscreen buffer. Finally, finishPainting() should be called. It fills the data buffer passed in with the image data.
version
1.11, 03/15/07
author
Josh Outwater

Fields Summary
private static final int
CACHE_SIZE
Size of the image cache
private static HashMap
regionToWidgetTypeMap
private ImageCache
cache
private int
x0
private int
y0
private int
w0
private int
h0
private Graphics
graphics
private Object[]
cacheArgs
private static final ColorModel[]
COLOR_MODELS
private static final int[]
BAND_OFFSETS
Constructors Summary
Methods Summary
public voidfinishPainting()
Called to indicate that painting is finished. We create a new BufferedImage from the offscreen buffer, cache it, and paint it.

        int[] data = new int[w0 * h0];
        int transparency = nativeFinishPainting(data, w0, h0);

        int[] bands = BAND_OFFSETS[transparency - 1];
        DataBuffer dataBuffer = new DataBufferInt(data, data.length);
        WritableRaster raster = Raster.createPackedRaster(
                dataBuffer, w0, h0, w0, bands, null);

        // Raster created this way is not accelerated.
        // We re-enable acceleration here.
        if (raster instanceof SunWritableRaster) {
            ((SunWritableRaster)raster).setStolen(false);
        }
        
        ColorModel cm = COLOR_MODELS[transparency - 1];
        Image img = new BufferedImage(cm, raster, false, null);
        cache.setImage(getClass(), null, w0, h0, cacheArgs, img);
        graphics.drawImage(img, x0, y0, null);
public java.lang.ObjectgetSetting(Settings property)

        synchronized(sun.awt.UNIXToolkit.GTK_LOCK) {
            return native_get_gtk_setting(property.ordinal());
        }
private static intgetTextDirection(javax.swing.plaf.synth.SynthContext context)

        TextDirection dir = TextDirection.NONE;
        JComponent comp = context.getComponent();
        if (comp != null) {
            ComponentOrientation co = comp.getComponentOrientation();
            if (co != null) {
                dir = co.isLeftToRight() ?
                    TextDirection.LTR : TextDirection.RTL;
            }
        }
        return dir.ordinal();
static com.sun.java.swing.plaf.gtk.GTKConstants.WidgetTypegetWidgetType(javax.swing.JComponent c, javax.swing.plaf.synth.Region id)
Translate Region and JComponent into WidgetType ordinals

    
       
                   
                     
       
                   
                       
       
                   
                   
                 
       
                 
                   
       
                 
                     
       
                   
                     
       
                   
                     
       
                 
                   
       
                   
                     
       
                 
                   
       
                 
                   
       
                   
                       
       
                   
                     
       
                 
                   
       
                       
        

          
            
       


     
        // Make sure the awt toolkit is loaded so we have access to native
        // methods.
        Toolkit.getDefaultToolkit();
        
        // Initialize regionToWidgetTypeMap
        regionToWidgetTypeMap = new HashMap(50);
        regionToWidgetTypeMap.put(Region.ARROW_BUTTON, new WidgetType[] { 
            WidgetType.SPINNER_ARROW_BUTTON, 
            WidgetType.COMBO_BOX_ARROW_BUTTON, 
            WidgetType.HSCROLL_BAR_BUTTON_LEFT, 
            WidgetType.HSCROLL_BAR_BUTTON_RIGHT, 
            WidgetType.VSCROLL_BAR_BUTTON_UP, 
            WidgetType.VSCROLL_BAR_BUTTON_DOWN});
        regionToWidgetTypeMap.put(Region.BUTTON, WidgetType.BUTTON);
        regionToWidgetTypeMap.put(Region.CHECK_BOX, WidgetType.CHECK_BOX);
        regionToWidgetTypeMap.put(Region.CHECK_BOX_MENU_ITEM,
                                  WidgetType.CHECK_BOX_MENU_ITEM);
        regionToWidgetTypeMap.put(Region.COLOR_CHOOSER, WidgetType.COLOR_CHOOSER);
        regionToWidgetTypeMap.put(Region.FILE_CHOOSER, WidgetType.OPTION_PANE);
        regionToWidgetTypeMap.put(Region.COMBO_BOX, WidgetType.COMBO_BOX);
        regionToWidgetTypeMap.put(Region.DESKTOP_ICON, WidgetType.DESKTOP_ICON);
        regionToWidgetTypeMap.put(Region.DESKTOP_PANE, WidgetType.DESKTOP_PANE);
        regionToWidgetTypeMap.put(Region.EDITOR_PANE, WidgetType.EDITOR_PANE);
        regionToWidgetTypeMap.put(Region.FORMATTED_TEXT_FIELD, new WidgetType[] { 
            WidgetType.FORMATTED_TEXT_FIELD, WidgetType.SPINNER_TEXT_FIELD}); 
        regionToWidgetTypeMap.put(GTKRegion.HANDLE_BOX, WidgetType.HANDLE_BOX);
        regionToWidgetTypeMap.put(Region.INTERNAL_FRAME,
                                  WidgetType.INTERNAL_FRAME);
        regionToWidgetTypeMap.put(Region.INTERNAL_FRAME_TITLE_PANE,
                                  WidgetType.INTERNAL_FRAME_TITLE_PANE);
        regionToWidgetTypeMap.put(Region.LABEL, new WidgetType[] { 
            WidgetType.LABEL, WidgetType.COMBO_BOX_TEXT_FIELD}); 
        regionToWidgetTypeMap.put(Region.LIST, WidgetType.LIST);
        regionToWidgetTypeMap.put(Region.MENU, WidgetType.MENU);
        regionToWidgetTypeMap.put(Region.MENU_BAR, WidgetType.MENU_BAR);
        regionToWidgetTypeMap.put(Region.MENU_ITEM, WidgetType.MENU_ITEM);
        regionToWidgetTypeMap.put(Region.MENU_ITEM_ACCELERATOR,
                                  WidgetType.MENU_ITEM_ACCELERATOR);
        regionToWidgetTypeMap.put(Region.OPTION_PANE, WidgetType.OPTION_PANE);
        regionToWidgetTypeMap.put(Region.PANEL, WidgetType.PANEL);
        regionToWidgetTypeMap.put(Region.PASSWORD_FIELD,
                                  WidgetType.PASSWORD_FIELD);
        regionToWidgetTypeMap.put(Region.POPUP_MENU, WidgetType.POPUP_MENU);
        regionToWidgetTypeMap.put(Region.POPUP_MENU_SEPARATOR,
                                  WidgetType.POPUP_MENU_SEPARATOR);
        regionToWidgetTypeMap.put(Region.PROGRESS_BAR, WidgetType.PROGRESS_BAR);
        regionToWidgetTypeMap.put(Region.RADIO_BUTTON, WidgetType.RADIO_BUTTON);
        regionToWidgetTypeMap.put(Region.RADIO_BUTTON_MENU_ITEM,
                                  WidgetType.RADIO_BUTTON_MENU_ITEM);
        regionToWidgetTypeMap.put(Region.ROOT_PANE, WidgetType.ROOT_PANE);
        regionToWidgetTypeMap.put(Region.SCROLL_BAR, new WidgetType[] {
            WidgetType.HSCROLL_BAR, WidgetType.VSCROLL_BAR});
        regionToWidgetTypeMap.put(Region.SCROLL_BAR_THUMB, new WidgetType[] {
            WidgetType.HSCROLL_BAR_THUMB, WidgetType.VSCROLL_BAR_THUMB});
        regionToWidgetTypeMap.put(Region.SCROLL_BAR_TRACK, new WidgetType[] {
            WidgetType.HSCROLL_BAR_TRACK, WidgetType.VSCROLL_BAR_TRACK});
        regionToWidgetTypeMap.put(Region.SCROLL_PANE, WidgetType.SCROLL_PANE);
        regionToWidgetTypeMap.put(Region.SEPARATOR, new WidgetType[] {
            WidgetType.HSEPARATOR, WidgetType.VSEPARATOR});
        regionToWidgetTypeMap.put(Region.SLIDER, new WidgetType[] {
            WidgetType.HSLIDER, WidgetType.VSLIDER});
        regionToWidgetTypeMap.put(Region.SLIDER_THUMB, new WidgetType[] {
            WidgetType.HSLIDER_THUMB, WidgetType.VSLIDER_THUMB});
        regionToWidgetTypeMap.put(Region.SLIDER_TRACK, new WidgetType[] {
            WidgetType.HSLIDER_TRACK, WidgetType.VSLIDER_TRACK});
        regionToWidgetTypeMap.put(Region.SPINNER, WidgetType.SPINNER);
        regionToWidgetTypeMap.put(Region.SPLIT_PANE, WidgetType.SPLIT_PANE);
        regionToWidgetTypeMap.put(Region.SPLIT_PANE_DIVIDER, new WidgetType[] {
            WidgetType.HSPLIT_PANE_DIVIDER, WidgetType.VSPLIT_PANE_DIVIDER});
        regionToWidgetTypeMap.put(Region.TABBED_PANE, WidgetType.TABBED_PANE);
        regionToWidgetTypeMap.put(Region.TABBED_PANE_CONTENT,
                                  WidgetType.TABBED_PANE_CONTENT);
        regionToWidgetTypeMap.put(Region.TABBED_PANE_TAB,
                                  WidgetType.TABBED_PANE_TAB);
        regionToWidgetTypeMap.put(Region.TABBED_PANE_TAB_AREA,
                                  WidgetType.TABBED_PANE_TAB_AREA);
        regionToWidgetTypeMap.put(Region.TABLE, WidgetType.TABLE);
        regionToWidgetTypeMap.put(Region.TABLE_HEADER, WidgetType.TABLE_HEADER);
        regionToWidgetTypeMap.put(Region.TEXT_AREA, WidgetType.TEXT_AREA);
        regionToWidgetTypeMap.put(Region.TEXT_FIELD, new WidgetType[] { 
            WidgetType.TEXT_FIELD, WidgetType.COMBO_BOX_TEXT_FIELD});
        regionToWidgetTypeMap.put(Region.TEXT_PANE, WidgetType.TEXT_PANE);
        regionToWidgetTypeMap.put(Region.TOGGLE_BUTTON, WidgetType.TOGGLE_BUTTON);
        regionToWidgetTypeMap.put(Region.TOOL_BAR, WidgetType.TOOL_BAR);
        regionToWidgetTypeMap.put(Region.TOOL_BAR_CONTENT, WidgetType.TOOL_BAR);
        regionToWidgetTypeMap.put(Region.TOOL_BAR_DRAG_WINDOW,
                                  WidgetType.TOOL_BAR_DRAG_WINDOW);
        regionToWidgetTypeMap.put(Region.TOOL_BAR_SEPARATOR,
                                  WidgetType.TOOL_BAR_SEPARATOR);
        regionToWidgetTypeMap.put(Region.TOOL_TIP, WidgetType.TOOL_TIP);
        regionToWidgetTypeMap.put(Region.TREE, WidgetType.TREE);
        regionToWidgetTypeMap.put(Region.TREE_CELL, WidgetType.TREE_CELL);
        regionToWidgetTypeMap.put(Region.VIEWPORT, WidgetType.VIEWPORT);
    
        Object value = regionToWidgetTypeMap.get(id);

        if (value instanceof WidgetType) {
            return (WidgetType)value;
        }

        WidgetType[] widgets = (WidgetType[])value;
        if (c == null ) {
            return widgets[0];
        }
        
        if (c instanceof JScrollBar) {
            return (((JScrollBar)c).getOrientation() == JScrollBar.HORIZONTAL) ?
                widgets[0] : widgets[1];
        } else if (c instanceof JSeparator) {
            JSeparator separator = (JSeparator)c; 

            /* We should return correct WidgetType if the separator is inserted 
             * in Menu/PopupMenu/ToolBar. BugID: 6465603 
             */ 
            if (separator.getParent() instanceof JPopupMenu) { 
               return WidgetType.POPUP_MENU_SEPARATOR; 
            } else if (separator.getParent() instanceof JToolBar) { 
                return WidgetType.TOOL_BAR_SEPARATOR; 
            } 

            return (separator.getOrientation() == JSeparator.HORIZONTAL) ? 
                widgets[0] : widgets[1];
        } else if (c instanceof JSlider) {
            return (((JSlider)c).getOrientation() == JSlider.HORIZONTAL) ?
                widgets[0] : widgets[1];
        } else if (c instanceof JSplitPane) {
            return (((JSplitPane)c).getOrientation() == JSplitPane.HORIZONTAL_SPLIT) ?
                widgets[1] : widgets[0];
        } else if (id == Region.LABEL || id == Region.TEXT_FIELD) {
            String name = c.getName();
            if (name != null && name.startsWith("ComboBox")) {
                return widgets[1];
            } else {
                return widgets[0];
            }
        } else if (id == Region.FORMATTED_TEXT_FIELD) {
            String name = c.getName();
            if (name != null && name.startsWith("Spinner")) {
                return widgets[1];
            } else {
                return widgets[0];
            }
        } else if (id == Region.ARROW_BUTTON) { 
            if (c.getParent() instanceof JScrollBar) { 
                Integer prop = (Integer)c.getClientProperty("__arrow_direction__"); 
                int dir = (prop != null) ? 
                    prop.intValue() : SwingConstants.WEST; 
                switch (dir) { 
                case SwingConstants.WEST: 
                    return WidgetType.HSCROLL_BAR_BUTTON_LEFT; 
                case SwingConstants.EAST: 
                    return WidgetType.HSCROLL_BAR_BUTTON_RIGHT; 
                case SwingConstants.NORTH: 
                    return WidgetType.VSCROLL_BAR_BUTTON_UP; 
                case SwingConstants.SOUTH: 
                    return WidgetType.VSCROLL_BAR_BUTTON_DOWN; 
                default: 
                    return null; 
                } 
            } else if (c.getParent() instanceof JComboBox) {
                return WidgetType.COMBO_BOX_ARROW_BUTTON;
            } else { 
                return WidgetType.SPINNER_ARROW_BUTTON; 
            }
        }
        
        return null;
private native intnativeFinishPainting(int[] buffer, int width, int height)

private native voidnativeStartPainting(int w, int h)
private native java.lang.Objectnative_get_gtk_setting(int property)
private native voidnative_paint_arrow(int widgetType, int state, int shadowType, java.lang.String detail, int x, int y, int width, int height, int arrowType)
private native voidnative_paint_background(int widgetType, int state, int x, int y, int width, int height)
private native voidnative_paint_box(int widgetType, int state, int shadowType, java.lang.String detail, int x, int y, int width, int height, int synth_state, int dir)
private native voidnative_paint_box_gap(int widgetType, int state, int shadowType, java.lang.String detail, int x, int y, int width, int height, int gapSide, int gapX, int gapWidth)
private native voidnative_paint_check(int widgetType, int synthState, java.lang.String detail, int x, int y, int width, int height)
private native voidnative_paint_expander(int widgetType, int state, java.lang.String detail, int x, int y, int width, int height, int expanderStyle)
private native voidnative_paint_extension(int widgetType, int state, int shadowType, java.lang.String detail, int x, int y, int width, int height, int placement)
private native voidnative_paint_flat_box(int widgetType, int state, int shadowType, java.lang.String detail, int x, int y, int width, int height, boolean hasFocus)
private native voidnative_paint_focus(int widgetType, int state, java.lang.String detail, int x, int y, int width, int height)
private native voidnative_paint_handle(int widgetType, int state, int shadowType, java.lang.String detail, int x, int y, int width, int height, int orientation)
private native voidnative_paint_hline(int widgetType, int state, java.lang.String detail, int x, int y, int width, int height)
private native voidnative_paint_option(int widgetType, int synthState, java.lang.String detail, int x, int y, int width, int height)
private native voidnative_paint_shadow(int widgetType, int state, int shadowType, java.lang.String detail, int x, int y, int width, int height, int synthState, int dir)
private native voidnative_paint_slider(int widgetType, int state, int shadowType, java.lang.String detail, int x, int y, int width, int height, int orientation)
private native voidnative_paint_vline(int widgetType, int state, java.lang.String detail, int x, int y, int width, int height)
private native voidnative_switch_theme()
public voidpaintArrow(java.awt.Graphics g, javax.swing.plaf.synth.SynthContext context, javax.swing.plaf.synth.Region id, int state, com.sun.java.swing.plaf.gtk.GTKConstants.ShadowType shadowType, com.sun.java.swing.plaf.gtk.GTKConstants.ArrowType direction, java.lang.String detail, int x, int y, int w, int h)

        state = GTKLookAndFeel.synthStateToGTKStateType(state).ordinal();
        int widget = getWidgetType(context.getComponent(), id).ordinal();
        native_paint_arrow(widget, state, shadowType.ordinal(),
                detail, x - x0, y - y0, w, h, direction.ordinal());
    
public voidpaintBackground(java.awt.Graphics g, javax.swing.plaf.synth.SynthContext context, javax.swing.plaf.synth.Region id, int state, java.awt.Color color, int x, int y, int w, int h)

        state = GTKLookAndFeel.synthStateToGTKStateType(state).ordinal();
        int widget = getWidgetType(context.getComponent(), id).ordinal();
        native_paint_background(widget, state, x - x0, y - y0, w, h);
    
public voidpaintBox(java.awt.Graphics g, javax.swing.plaf.synth.SynthContext context, javax.swing.plaf.synth.Region id, int state, com.sun.java.swing.plaf.gtk.GTKConstants.ShadowType shadowType, java.lang.String detail, int x, int y, int w, int h)

        int gtkState = 
            GTKLookAndFeel.synthStateToGTKStateType(state).ordinal(); 
        int synthState = context.getComponentState(); 
        int dir = getTextDirection(context);
        int widget = getWidgetType(context.getComponent(), id).ordinal();
        native_paint_box(widget, gtkState, shadowType.ordinal(),
                detail, x - x0, y - y0, w, h, synthState, dir);
    
public voidpaintBoxGap(java.awt.Graphics g, javax.swing.plaf.synth.SynthContext context, javax.swing.plaf.synth.Region id, int state, com.sun.java.swing.plaf.gtk.GTKConstants.ShadowType shadowType, java.lang.String detail, int x, int y, int w, int h, com.sun.java.swing.plaf.gtk.GTKConstants.PositionType boxGapType, int tabBegin, int size)
        
        state = GTKLookAndFeel.synthStateToGTKStateType(state).ordinal();
        int widget = getWidgetType(context.getComponent(), id).ordinal();
        native_paint_box_gap(widget, state, shadowType.ordinal(), detail,
                x - x0, y - y0, w, h, boxGapType.ordinal(), tabBegin, size);
    
public booleanpaintCachedImage(java.awt.Graphics g, int x, int y, int w, int h, java.lang.Object args)
Paint a cached image identified by its size and a set of additional
arguments, if there's one.
return
true if a cached image has been painted, false otherwise

    
                                     
       
                      
        if (w <= 0 || h <= 0) {
            return true;
        }
        
        // look for cached image
        Image img = cache.getImage(getClass(), null, w, h, args);
        if (img != null) {
            g.drawImage(img, x, y, null);
            return true;
        }
        return false;
    
public voidpaintCheck(java.awt.Graphics g, javax.swing.plaf.synth.SynthContext context, javax.swing.plaf.synth.Region id, int state, com.sun.java.swing.plaf.gtk.GTKConstants.ShadowType shadowType, java.lang.String detail, int x, int y, int w, int h)

        int synthState = context.getComponentState();
        int widget = getWidgetType(context.getComponent(), id).ordinal();
        native_paint_check(widget, synthState, detail, x - x0, y - y0, w, h);
    
public voidpaintExpander(java.awt.Graphics g, javax.swing.plaf.synth.SynthContext context, javax.swing.plaf.synth.Region id, int state, com.sun.java.swing.plaf.gtk.GTKConstants.ExpanderStyle expanderStyle, java.lang.String detail, int x, int y, int w, int h)

        state = GTKLookAndFeel.synthStateToGTKStateType(state).ordinal();
        int widget = getWidgetType(context.getComponent(), id).ordinal();
        native_paint_expander(widget, state, detail, x - x0, y - y0, w, h,
                              expanderStyle.ordinal());
    
public voidpaintExtension(java.awt.Graphics g, javax.swing.plaf.synth.SynthContext context, javax.swing.plaf.synth.Region id, int state, com.sun.java.swing.plaf.gtk.GTKConstants.ShadowType shadowType, java.lang.String detail, int x, int y, int w, int h, com.sun.java.swing.plaf.gtk.GTKConstants.PositionType placement, int tabIndex)

        state = GTKLookAndFeel.synthStateToGTKStateType(state).ordinal();
        int widget = getWidgetType(context.getComponent(), id).ordinal();
        native_paint_extension(widget, state, shadowType.ordinal(), detail,
                               x - x0, y - y0, w, h, placement.ordinal());
    
public voidpaintFlatBox(java.awt.Graphics g, javax.swing.plaf.synth.SynthContext context, javax.swing.plaf.synth.Region id, int state, com.sun.java.swing.plaf.gtk.GTKConstants.ShadowType shadowType, java.lang.String detail, int x, int y, int w, int h, javax.swing.plaf.synth.ColorType colorType)

        state = GTKLookAndFeel.synthStateToGTKStateType(state).ordinal();
        int widget = getWidgetType(context.getComponent(), id).ordinal();
        native_paint_flat_box(widget, state, shadowType.ordinal(), detail, 
                              x - x0, y - y0, w, h,
                              context.getComponent().hasFocus());
    
public voidpaintFocus(java.awt.Graphics g, javax.swing.plaf.synth.SynthContext context, javax.swing.plaf.synth.Region id, int state, java.lang.String detail, int x, int y, int w, int h)

        state = GTKLookAndFeel.synthStateToGTKStateType(state).ordinal();
        int widget = getWidgetType(context.getComponent(), id).ordinal();
        native_paint_focus(widget, state, detail, x - x0, y - y0, w, h);
    
public voidpaintHandle(java.awt.Graphics g, javax.swing.plaf.synth.SynthContext context, javax.swing.plaf.synth.Region id, int state, com.sun.java.swing.plaf.gtk.GTKConstants.ShadowType shadowType, java.lang.String detail, int x, int y, int w, int h, com.sun.java.swing.plaf.gtk.GTKConstants.Orientation orientation)

        state = GTKLookAndFeel.synthStateToGTKStateType(state).ordinal();
        int widget = getWidgetType(context.getComponent(), id).ordinal();
        native_paint_handle(widget, state, shadowType.ordinal(), detail,
                            x - x0, y - y0, w, h, orientation.ordinal());
    
public voidpaintHline(java.awt.Graphics g, javax.swing.plaf.synth.SynthContext context, javax.swing.plaf.synth.Region id, int state, java.lang.String detail, int x, int y, int w, int h)
        
        state = GTKLookAndFeel.synthStateToGTKStateType(state).ordinal();
        int widget = getWidgetType(context.getComponent(), id).ordinal();
        native_paint_hline(widget, state, detail, x - x0, y - y0, w, h);
    
public voidpaintOption(java.awt.Graphics g, javax.swing.plaf.synth.SynthContext context, javax.swing.plaf.synth.Region id, int state, com.sun.java.swing.plaf.gtk.GTKConstants.ShadowType shadowType, java.lang.String detail, int x, int y, int w, int h)

        int synthState = context.getComponentState();
        int widget = getWidgetType(context.getComponent(), id).ordinal();
        native_paint_option(widget, synthState, detail, x - x0, y - y0, w, h);
    
public voidpaintShadow(java.awt.Graphics g, javax.swing.plaf.synth.SynthContext context, javax.swing.plaf.synth.Region id, int state, com.sun.java.swing.plaf.gtk.GTKConstants.ShadowType shadowType, java.lang.String detail, int x, int y, int w, int h)

        int gtkState = 
            GTKLookAndFeel.synthStateToGTKStateType(state).ordinal(); 
        int synthState = context.getComponentState(); 
        int dir = getTextDirection(context); 
        int widget = getWidgetType(context.getComponent(), id).ordinal();
        native_paint_shadow(widget, gtkState, shadowType.ordinal(), detail,
                            x - x0, y - y0, w, h, synthState, dir);
    
public voidpaintSlider(java.awt.Graphics g, javax.swing.plaf.synth.SynthContext context, javax.swing.plaf.synth.Region id, int state, com.sun.java.swing.plaf.gtk.GTKConstants.ShadowType shadowType, java.lang.String detail, int x, int y, int w, int h, com.sun.java.swing.plaf.gtk.GTKConstants.Orientation orientation)

        state = GTKLookAndFeel.synthStateToGTKStateType(state).ordinal();
        int widget = getWidgetType(context.getComponent(), id).ordinal();
        native_paint_slider(widget, state, shadowType.ordinal(), detail,
                            x - x0, y - y0, w, h, orientation.ordinal());
    
public voidpaintVline(java.awt.Graphics g, javax.swing.plaf.synth.SynthContext context, javax.swing.plaf.synth.Region id, int state, java.lang.String detail, int x, int y, int w, int h)

        state = GTKLookAndFeel.synthStateToGTKStateType(state).ordinal();
        int widget = getWidgetType(context.getComponent(), id).ordinal();
        native_paint_vline(widget, state, detail, x - x0, y - y0, w, h);
    
public voidstartPainting(java.awt.Graphics g, int x, int y, int w, int h, java.lang.Object args)
        nativeStartPainting(w, h);
        x0 = x;
        y0 = y;
        w0 = w;
        h0 = h;
        graphics = g;
        cacheArgs = args;
    
public voidthemeChanged()
Notify native layer of theme change, and flush cache
        synchronized(sun.awt.UNIXToolkit.GTK_LOCK) {
            native_switch_theme();
        }
        cache.flush();